[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Launchpad Bug Tracker]

This bug was fixed in the package ccid - 1.4.22-1ubuntu0.1

---
ccid (1.4.22-1ubuntu0.1) xenial-proposed; urgency=low

  * debian/patches/close-libusb-on-failure.patch: Make sure
close_libusb_if_needed is called even if no device was opened,
otherwise it triggers a segfault. (LP: #1551897)

 -- Evan Broder   Mon, 09 May 2016 12:28:36 -0700

** Changed in: ccid (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  Fix Released
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

Thanks Martin. I've confirmed that the package solves the issue for me.

** Tags removed: verification-needed
** Tags added: verification-done

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Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  Fix Committed
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Martin Pitt]

Hello Casey, or anyone else affected,

Accepted ccid into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/ccid/1.4.22-1ubuntu0.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: ccid (Ubuntu Xenial)
   Status: In Progress => Fix Committed

** Tags added: verification-needed

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  Fix Committed
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

Sorry about that, Martin. Not sure what happened. Just re-uploaded
without the noise.

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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  In Progress
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Martin Pitt]

Evan: d/patches/close-libusb-on-failure.patch looks fair enough, but
what is debian/patches/test? It's a patch of a patch, not
referenced/explained in the changelog, what does that do? Please either
explain in the changelog or if it is just noise please remove and
reupload. Thanks!

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  In Progress
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Sylvain]

Hello,

I've the same problem with my laptop (Dell Latitude E7450).
If I can help don't hesitate to ask me. I can give you some logs if you want.

Best regards,
Sylvain

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  In Progress
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

** Changed in: ccid (Ubuntu Xenial)
   Status: Confirmed => In Progress

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  In Progress
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  [Impact]

  When hotplugging a composite USB device that expose multiple
  interfaces (such as a Yubikey NEO or Yubikey 4), libccid does not
  correctly de-initialize the USB library when it skips over the non-
  CCID interface.

  This subsequently results in pcscd (or, presumably, anything that
  loads libccid, though I don't think anything else does) either using
  100% CPU or segfaulting when the device is unplugged.

  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.

  [Test Case]

  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)

  [Regression Potential]

  The patch is quite narrow, and thus the potential for regression
  should be limited. The new code adds calls to close_libusb_if_needed,
  which is already written to be fairly conservative.

  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.

  ==
  Original bug description:

  In xenial, pcscd CPU utilization occasionally goes haywire:

    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

** Description changed:

+ 
+ [DESCRIPTION]
+ 
+ When hotplugging a composite USB device that expose multiple interfaces
+ (such as a Yubikey NEO or Yubikey 4), libccid does not correctly de-
+ initialize the USB library when it skips over the non-CCID interface.
+ 
+ This subsequently results in pcscd (or, presumably, anything that loads
+ libccid, though I don't think anything else does) either using 100% CPU
+ or segfaulting when the device is unplugged.
+ 
+ This seems worthy of an SRU as it is an easily reproducible bug with a
+ simple, targeted fix.
+ 
+ [TEST CASE]
+ 
+ 1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
+ 2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
+ 3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)
+ 
+ [REGRESSION POTENTIAL]
+ 
+ The patch is quite narrow, and thus the potential for regression should
+ be limited. The new code adds calls to close_libusb_if_needed, which is
+ already written to be fairly conservative.
+ 
+ The worst case here is likely an unexpected call to libusb_exit, which
+ could cause libusb to get into an inconsistent state. However, in
+ practice the call seems quite safe, and the likelihood of regression
+ low.
+ 
+ 
+ ==
+ Original bug description:
+ 
  In xenial, pcscd CPU utilization occasionally goes haywire:
  
-   PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


- 27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  
+   PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
+ 27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  
  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to happen
  sporadically -- fan turns on, I run top, and there it is again.
  
  Never had this issue on same hardware incl. smartcard with trusty.
  
  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

** Description changed:

- 
- [DESCRIPTION]
+ [Impact]
  
  When hotplugging a composite USB device that expose multiple interfaces
  (such as a Yubikey NEO or Yubikey 4), libccid does not correctly de-
  initialize the USB library when it skips over the non-CCID interface.
  
  This subsequently results in pcscd (or, presumably, anything that loads
  libccid, though I don't think anything else does) either using 100% CPU
  or segfaulting when the device is unplugged.
  
  This seems worthy of an SRU as it is an easily reproducible bug with a
  simple, targeted fix.
  
- [TEST CASE]
+ [Test Case]
  
  1. Make sure pcscd is running (sudo systemctl start pcscd; possibly sudo 
systemctl restart pcscd if a potentially fixed package has just been installed)
  2. Plug and then unplug a composite USB device that includes a CCID interface 
(such as a Yubikey NEO)
  3. Observe that pcscd has crashed with a segfault (sudo systemctl status 
pcscd)
  
- [REGRESSION POTENTIAL]
+ [Regression Potential]
  
  The patch is quite narrow, and thus the potential for regression should
  be limited. The new code adds calls to close_libusb_if_needed, which is
  already written to be fairly conservative.
  
  The worst case here is likely an unexpected call to libusb_exit, which
  could cause libusb to get into an inconsistent state. However, in
  practice the call seems quite safe, and the likelihood of regression
  low.
- 
  
  ==
  Original bug description:
  
  In xenial, pcscd CPU utilization occasionally goes haywire:
  
    PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND
  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  
  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to happen
  sporadically -- fan turns on, I run top, and there it is again.
  
  Never had this issue on same hardware incl. smartcard with trusty.
  
  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  In Progress
Status in pcsc-lite source package in 

[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

This is actually a bug in ccid's handling of composite USB devices, and
has been fixed upstream (https://alioth.debian.org/plugins/scmgit/cgi-
bin/gitweb.cgi?p=pcsclite/CCID.git;a=commitdiff_plain;h=3c21f452543983f3625a1965ce234074cbda6865).

My experience was that this bug caused pcscd to segfault, rather than to
consume 100% CPU, but the fix appears to be the same either way.

I've attached a debdiff that fixes the issue for me, and I've uploaded a
test build to my PPA (https://launchpad.net/~broder/+archive/ubuntu
/ubuntu-tests). I suspect this merits an SRU, since it's a significant
regression in functionality without a good workaround; I'll start on the
paperwork.

** Patch added: "ccid_1.4.22-1ubuntu0.1.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/ccid/+bug/1551897/+attachment/4659458/+files/ccid_1.4.22-1ubuntu0.1.debdiff

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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  Confirmed
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Evan Broder]

** Also affects: ccid (Ubuntu)
   Importance: Undecided
   Status: New

** Also affects: ccid (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: pcsc-lite (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: ccid (Ubuntu Xenial)
   Status: New => Confirmed

** Changed in: ccid (Ubuntu)
   Status: New => Fix Released

** Changed in: pcsc-lite (Ubuntu)
   Status: Confirmed => Invalid

** Changed in: pcsc-lite (Ubuntu Xenial)
   Status: New => Invalid

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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in ccid package in Ubuntu:
  Fix Released
Status in pcsc-lite package in Ubuntu:
  Invalid
Status in ccid source package in Xenial:
  Confirmed
Status in pcsc-lite source package in Xenial:
  Invalid
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Bug Watch Updater]

** Changed in: pcsc-lite (Debian)
   Status: Confirmed => Fix Released

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed
Status in pcsc-lite package in Debian:
  Fix Released

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Bug Watch Updater]

** Changed in: pcsc-lite (Debian)
   Status: Unknown => Confirmed

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed
Status in pcsc-lite package in Debian:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

** Also affects: pcsc-lite (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087
   Importance: Unknown
   Status: Unknown

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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed
Status in pcsc-lite package in Debian:
  Unknown

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

Thank you Ludovic.
Laptop is quiet again.
(needed to install -dev files to get over /configure errors, if anyone else is 
confused)

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Johnny, you can disable support of the Broadcom device.

- Get the source code of the libccid driver from 
https://alioth.debian.org/frs/?group_id=30105#title_ccid.
- edit the file readers/supported_readers.txt
- remove the line "0x0A5C:0x5800:Broadcom Corp 5880"
- run the commands
$ ./configure
$ make
$ make install DESTDIR=/tmp/ccid
$ sudo cp /tmp/ccid/usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Info.plist 
/etc/libccid_Info.plist

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

I reported the bug upstream to libudev project
https://github.com/systemd/systemd/issues/2946

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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

I use my non-integrated omnikey 1021 usb smartcard-reader, so pcscd is
still needed, correct?

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Johnny, you can remove the pcscd package if you do not use it.

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

Is there a way to disable the device in software, so i could just use my
usb card-reader?

-- 
You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

It looks like the problem is related to some specific readers only:
Broadcom Corp 5880 and Yubico Yubikey NEO U2F+CCID

-- 
You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

So in my case it triggers when i connect some usb device (mouse, 
usb-flash-memory, phone). Sometimes it calms down after unmount and unplug of 
usb-memory, and does not come back until i logout of lubuntu desktop (and login 
and plugin again). 
Another way of triggering 100% is in my case having usb-memory plugged in and 
starting firefox. This firefox has estonian id-card plugin installed. I guess 
that plugin starts looking for id-card or device.

-- 
You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

** Attachment added: "lsusb-v.txt"
   
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+attachment/4615641/+files/lsusb-v.txt

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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Johnny, can you attach the result of the command "lsusb -v"?
Thanks

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You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

Sorry again, Ludovic, i have no idea what this pcscd does so i thought its some 
general error. 
Is this bug device specific? Then i have an Dell laptop with integrated 
smart-card reader (which im not using physically, since some metal is bended on 
the way of the card.) 
(The most used here is omnikey 1021, but that thing is not connected to the 
computer when the one cpu-core goes 100%)

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Casey, it looks like the problem is related to the use of a "Yubico Yubikey NEO 
U2F+CCID" device.
Unfortunately I do not have such a device myself so I can't reproduce the 
problem here :-(

Johnny, why do you say "Probably most people using Estonian ID-Card on those 
distros will be affected?"?
What smart card reader(s) are provided with the Estonian ID-Card?

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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

hey, sorry, total noob here, what i got is:

 pcscdaemon.c:263:main() pcscd set to foreground with debug send to 
stdout
0021 debuglog.c:312:DebugLogSetCategory() Debug options: APDU
0016 pcscdaemon.c:268:main() Force colored logs
0037 pcscdaemon.c:403:main() file /var/run/pcscd/pcscd.comm already exists.
0006 pcscdaemon.c:405:main() Another pcscd (pid: 7349) seems to be running.

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You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Can you do:
sudo LIBUSB_DEBUG=99 pcscd -dfaT | tee log.txt
and add to this bug the created log.txt file?

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

Hmm, conveniently just had a crash. No idea if there is anything useful there :
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1561702

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You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Johnny Izzo]

Probably most people using Estonian ID-Card on those distros will be
affected? Not good :(

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: pcsc-lite (Ubuntu)
   Status: New => Confirmed

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  Confirmed

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

I installed Ubuntu Xenial (beta) in a VirtualBox virtual machine and I
can't reproduce the problem :-(

I could connect a CCID reader and a USB mass storage with no problem on pcscd.
Can you reproduce the problem in a Virtual Machine on your side?

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

I can work around this with my custom build of pcscd with udev disabled,
but it seems that this issue will still affect Debian and Ubuntu users
who install the package.

Can we mark this bug as Confirmed, since my symptoms are so similar to
the descriptions in the Debian bug[1] you've linked above?

Anything else I can do to help?

Thanks,
Casey

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

If you use --disable-libudev you use use the older hotplug mechanism.
See 
http://ludovicrousseau.blogspot.com/2011/02/pcscd-now-uses-libudev-instead-of.html

At least that will avoid the 100% CPU issue.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

Recompiling with --disable-libudev gets rid of the 100% CPU problem and
I can still use my smartcard.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

Here's a core dump with the corresponding pcscd binary I built from
source, which was taken in the above-mentioned gdb session.

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

** Attachment added: "pcscd binary and core dump"
   
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+attachment/4588521/+files/pcscd-core-bin.tar.bz2

-- 
You received this bug notification because you are a member of Ubuntu
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Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

Ran it with gdb, reproduced, and then interrupted when it started
consuming 100% CPU:

Thread 1 "pcscd" received signal SIGINT, Interrupt.
0x774e2853 in select () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x774e2853 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00411cfd in ProcessEventsServer 
(pdwClientID=pdwClientID@entry=0x7fffe49c) at winscard_msg_srv.c:223
#2  0x004037f9 in SVCServiceRunLoop () at pcscdaemon.c:128
#3  main (argc=, argv=) at pcscdaemon.c:685
(gdb) info threads
  Id   Target Id Frame 
* 1Thread 0x77fb9740 (LWP 18298) "pcscd" 0x774e2853 in select 
() from /lib/x86_64-linux-gnu/libc.so.6
  2Thread 0x76fb0700 (LWP 18302) "pcscd" 0x774e09ed in poll () 
from /lib/x86_64-linux-gnu/libc.so.6
  3Thread 0x767af700 (LWP 18303) "pcscd" 0x774e09ed in poll () 
from /lib/x86_64-linux-gnu/libc.so.6
  4Thread 0x75fae700 (LWP 18304) "pcscd" 0x774e09ed in poll () 
from /lib/x86_64-linux-gnu/libc.so.6
  5Thread 0x757ad700 (LWP 18305) "pcscd" 0x774e09ed in poll () 
from /lib/x86_64-linux-gnu/libc.so.6
(gdb) thread 2
[Switching to thread 2 (Thread 0x76fb0700 (LWP 18302))]
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x76fc064c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x777b666a in start_thread () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#3  0x774ec01d in clone () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) thread 3
[Switching to thread 3 (Thread 0x767af700 (LWP 18303))]
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x76fc064c in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x777b666a in start_thread () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#3  0x774ec01d in clone () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) thread 4
[Switching to thread 4 (Thread 0x75fae700 (LWP 18304))]
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x76fb9bc5 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x76fbab53 in libusb_handle_events_timeout_completed () from 
/lib/x86_64-linux-gnu/libusb-1.0.so.0
#3  0x76fbac3f in libusb_handle_events () from 
/lib/x86_64-linux-gnu/libusb-1.0.so.0
#4  0x771d64bc in ?? () from 
/usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Linux/libccid.so
#5  0x771d0b83 in ?? () from 
/usr/lib/pcsc/drivers/ifd-ccid.bundle/Contents/Linux/libccid.so
#6  0x004064db in EHStatusHandlerThread (rContext=0x61f010) at 
eventhandler.c:464
#7  0x777b666a in start_thread () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#8  0x774ec01d in clone () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) thread 5
[Switching to thread 5 (Thread 0x757ad700 (LWP 18305))]
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x774e09ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0040eeaa in poll (__timeout=-1, __nfds=1, __fds=0x757aced0) 
at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2  HPEstablishUSBNotifications (arg=0x649910) at hotplug_libudev.c:624
#3  0x777b666a in start_thread () from 
/lib/x86_64-linux-gnu/libpthread.so.0
#4  0x774ec01d in clone () from /lib/x86_64-linux-gnu/libc.so.6

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

Oh, here's /var/log/syslog from unplugging and replugging in my camera.
I Ctrl-C killed pcscd after it went to 100% each time.

pcscd segfaulted.

Mar  4 12:04:11 mawhrin-skel pcscd: debuglog.c:289:DebugLogSetLevel() debug 
level=debug
Mar  4 12:04:13 mawhrin-skel kernel: [14604.513268] usb 3-1: USB disconnect, 
device number 6
Mar  4 12:04:13 mawhrin-skel systemd[1]: Reloading Laptop Mode Tools.
Mar  4 12:04:13 mawhrin-skel systemd[1]: Reloaded Laptop Mode Tools.
Mar  4 12:04:13 mawhrin-skel laptop-mode: Laptop mode
Mar  4 12:04:13 mawhrin-skel laptop_mode[17937]: Laptop mode
Mar  4 12:04:13 mawhrin-skel laptop-mode: enabled, not active [unchanged]
Mar  4 12:04:13 mawhrin-skel laptop_mode[17937]: enabled, not active [unchanged]
Mar  4 12:04:53 mawhrin-skel systemd[1]: Starting Laptop Mode Tools - Battery 
Polling Service...
Mar  4 12:04:53 mawhrin-skel systemd[1]: Reloading Laptop Mode Tools.
Mar  4 12:04:53 mawhrin-skel systemd[1]: Started Laptop Mode Tools - Battery 
Polling Service.
Mar  4 12:04:53 mawhrin-skel laptop-mode: Laptop mode
Mar  4 12:04:53 mawhrin-skel laptop_mode[17997]: Laptop mode
Mar  4 12:04:53 mawhrin-skel laptop-mode: enabled, not active [unchanged]
Mar  4 12:04:53 mawhrin-skel laptop_mode[17997]: enabled, not active [unchanged]
Mar  4 12:04:53 mawhrin-skel systemd[1]: Reloaded Laptop Mode Tools.
Mar  4 12:05:01 mawhrin-skel CRON[18049]: (root) CMD ([ -x /usr/sbin/dma ] && 
/usr/sbin/dma -q1)
Mar  4 12:05:17 mawhrin-skel kernel: [14668.018203] pcscd[17921]: segfault at 
7f447696064c ip 7f447696064c sp 7f447694fed0 error 14 in 
libc-2.21.so[7f4476d85000+1c]
Mar  4 12:05:20 mawhrin-skel pcscd: debuglog.c:289:DebugLogSetLevel() debug 
level=debug
Mar  4 12:05:30 mawhrin-skel kernel: [14681.443071] usb 3-1: new high-speed USB 
device number 7 using xhci_hcd
Mar  4 12:05:31 mawhrin-skel kernel: [14681.844167] usb 3-1: New USB device 
found, idVendor=046d, idProduct=0825
Mar  4 12:05:31 mawhrin-skel kernel: [14681.844175] usb 3-1: New USB device 
strings: Mfr=0, Product=0, SerialNumber=2
Mar  4 12:05:31 mawhrin-skel kernel: [14681.844179] usb 3-1: SerialNumber: 
DD923C60
Mar  4 12:05:31 mawhrin-skel kernel: [14681.845342] uvcvideo: Found UVC 1.00 
device  (046d:0825)
Mar  4 12:05:31 mawhrin-skel kernel: [14681.937806] input: UVC Camera 
(046d:0825) as /devices/pci:00/:00:14.0/usb3/3-1/3-1:1.0/input/input19
Mar  4 12:05:32 mawhrin-skel kernel: [14683.279489] usb 3-1: set resolution 
quirk: cval->res = 384
Mar  4 12:05:32 mawhrin-skel mtp-probe: checking bus 3, device 7: 
"/sys/devices/pci:00/:00:14.0/usb3/3-1"
Mar  4 12:05:32 mawhrin-skel mtp-probe: bus: 3, device: 7 was not an MTP device
Mar  4 12:05:32 mawhrin-skel systemd[1]: Reloading Laptop Mode Tools.
Mar  4 12:05:32 mawhrin-skel systemd[1]: Reloaded Laptop Mode Tools.
Mar  4 12:05:32 mawhrin-skel systemd[1]: message repeated 3 times: [ Reloaded 
Laptop Mode Tools.]
Mar  4 12:05:32 mawhrin-skel systemd-udevd[18064]: Process '/usr/sbin/alsactl 
-E HOME=/run/alsa restore 1' failed with exit code 99.
Mar  4 12:05:32 mawhrin-skel laptop-mode: Laptop mode
Mar  4 12:05:32 mawhrin-skel laptop_mode[18067]: Laptop mode
Mar  4 12:05:32 mawhrin-skel laptop-mode: enabled, not active [unchanged]
Mar  4 12:05:32 mawhrin-skel laptop_mode[18067]: enabled, not active [unchanged]
Mar  4 12:05:32 mawhrin-skel pulseaudio[6720]: [pulseaudio] source.c: Default 
and alternate sample rates are the same.
Mar  4 12:05:32 mawhrin-skel rtkit-daemon[6721]: Supervising 3 threads of 1 
processes of 1 users.
Mar  4 12:05:32 mawhrin-skel rtkit-daemon[6721]: Successfully made thread 18136 
of process 6720 (n/a) owned by '1000' RT at priority 5.
Mar  4 12:05:32 mawhrin-skel rtkit-daemon[6721]: Supervising 4 threads of 1 
processes of 1 users.
Mar  4 12:07:09 mawhrin-skel kernel: [14780.487379] pcscd[18060]: segfault at 
7f74fedfa64c ip 7f74fedfa64c sp 7f74fede9ed0 error 14 in 
libc-2.21.so[7f74ff21f000+1c]
Mar  4 12:07:43 mawhrin-skel systemd[1]: Starting Laptop Mode Tools - Battery 
Polling Service...
Mar  4 12:07:43 mawhrin-skel systemd[1]: Reloading Laptop Mode Tools.
Mar  4 12:07:43 mawhrin-skel systemd[1]: Started Laptop Mode Tools - Battery 
Polling Service.
Mar  4 12:07:43 mawhrin-skel laptop-mode: Laptop mode
Mar  4 12:07:43 mawhrin-skel laptop_mode[18161]: Laptop mode
Mar  4 12:07:43 mawhrin-skel laptop-mode: enabled, not active [unchanged]
Mar  4 12:07:43 mawhrin-skel laptop_mode[18161]: enabled, not active [unchanged]
Mar  4 12:07:43 mawhrin-skel systemd[1]: Reloaded Laptop Mode Tools.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   
   

[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

It starts consuming 100% CPU after this:

02341452 hotplug_libudev.c:642:HPEstablishUSBNotifications() USB Device removed
0217 hotplug_libudev.c:619:HPEstablishUSBNotifications()
0068 hotplug_libudev.c:642:HPEstablishUSBNotifications() USB Device removed
0149 hotplug_libudev.c:619:HPEstablishUSBNotifications()
2713 hotplug_libudev.c:642:HPEstablishUSBNotifications() USB Device removed
0152 hotplug_libudev.c:619:HPEstablishUSBNotifications()
00020583 hotplug_libudev.c:642:HPEstablishUSBNotifications() USB Device removed
0143 hotplug_libudev.c:619:HPEstablishUSBNotifications()
02634822 ifdhandler.c:1143:IFDHPowerICC() action: PowerDown, 
usb:1050/0115:libudev:1:/dev/bus/usb/003/002 (lun: 0)
0091 eventhandler.c:479:EHStatusHandlerThread() powerState: 
POWER_STATE_UNPOWERED

or this:

05000574 ifdhandler.c:1143:IFDHPowerICC() action: PowerDown, 
usb:1050/0115:libudev:1:/dev/bus/usb/003/002 (lun: 0)
0261 eventhandler.c:479:EHStatusHandlerThread() powerState: 
POWER_STATE_UNPOWERED
06904552 hotplug_libudev.c:648:HPEstablishUSBNotifications() USB Device add
0242 hotplug_libudev.c:294:get_driver() Looking for a driver for VID: 
0x046D, PID: 0x0825, path: /dev/bus/usb/003/007
0015 hotplug_libudev.c:414:HPAddDevice() /dev/bus/usb/003/007 is not a 
supported smart card reader
0017 hotplug_libudev.c:619:HPEstablishUSBNotifications()
00022668 hotplug_libudev.c:648:HPEstablishUSBNotifications() USB Device add
0214 hotplug_libudev.c:294:get_driver() Looking for a driver for VID: 
0x046D, PID: 0x0825, path: /dev/bus/usb/003/007
0013 hotplug_libudev.c:414:HPAddDevice() /dev/bus/usb/003/007 is not a 
supported smart card reader
0017 hotplug_libudev.c:619:HPEstablishUSBNotifications()
6048 hotplug_libudev.c:648:HPEstablishUSBNotifications() USB Device add
0207 hotplug_libudev.c:294:get_driver() Looking for a driver for VID: 
0x046D, PID: 0x0825, path: /dev/bus/usb/003/007
0014 hotplug_libudev.c:414:HPAddDevice() /dev/bus/usb/003/007 is not a 
supported smart card reader
0015 hotplug_libudev.c:619:HPEstablishUSBNotifications()
00014614 hotplug_libudev.c:648:HPEstablishUSBNotifications() USB Device add
0200 hotplug_libudev.c:294:get_driver() Looking for a driver for VID: 
0x046D, PID: 0x0825, path: /dev/bus/usb/003/007
0016 hotplug_libudev.c:414:HPAddDevice() /dev/bus/usb/003/007 is not a 
supported smart card reader
0014 hotplug_libudev.c:619:HPEstablishUSBNotifications()

Basically, if I plug or unplug a USB device, pcscd immediately starting
using 100% CPU.

Let me know if there is anything else I can send you to help you debug.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

Does your log trace include the moment when pcscd consumed 100% of CPU?

I ask because I could not find anything strange in the trace.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

I ran pcscd as you suggested, capturing output. Made sure the smart card
was working by using my SSH key. I was then able to reproduce the 100%
cpu condition by plugging in my Logitech USB webcam.

Attached the output, but I redacted the hex dumps before posting here
because I'm not sure if they contain sensitive information. Let me know
if you need the original.

** Attachment added: "pcscd debug output (redacted)"
   
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+attachment/4587143/+files/pcscd.log.redacted

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Ludovic Rousseau]

It looks like https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087

Can you rebuild pcscd with hotplug debug enabled. No need to install
pcscd so you can't break your installation.

1. Get the source code of pcsc-lite, for example from
https://alioth.debian.org/frs/?group_id=30105_id=2019#pcsclite-_1.8.15
-title-content

2. install the build dependencies using:
$ sudo apt-get build-dep pcscd

3. edit the file PCSC/src/hotplug_libudev.c and change the line 66 from
#undef DEBUG_HOTPLUG
to
#define DEBUG_HOTPLUG

4. configure pcsc-lite using "./configure"

5. run pcscd using:
$ sudo ./src/pcscd -dfa

6. try to reproduce the 100% CPU consumption problem

This may generate a lot of logs if the problem is with libudev.

** Bug watch added: Debian Bug tracker #812087
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812087

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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[Touch-packages] [Bug 1551897] Re: Excessive CPU utilization

[Casey Marshall]

This is what I've got installed ^^

c@mawhrin-skel:~/omnibus-layers$ dpkg -l | grep pcscd
ii  pcscd   1.8.14-1ubuntu1 
  amd64Middleware to access a smart card using PC/SC 
(daemon side)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to pcsc-lite in Ubuntu.
https://bugs.launchpad.net/bugs/1551897

Title:
  Excessive CPU utilization

Status in pcsc-lite package in Ubuntu:
  New

Bug description:
  In xenial, pcscd CPU utilization occasionally goes haywire:

PID USER  PR  NIVIRTRESSHR S  %CPU %MEM TIME+ COMMAND   


  27404 root  20   0  384264   4992   2228 S 100.3  0.0  75:39.03 
/usr/sbin/pcscd --foreground --auto-exit
  

  I get this about once a day since installing xenial. I can't quite
  connect it to any specific event on the system, it just seems to
  happen sporadically -- fan turns on, I run top, and there it is again.

  Never had this issue on same hardware incl. smartcard with trusty.

  I wonder if it might be this? https://bugs.debian.org/cgi-
  bin/bugreport.cgi?bug=718473

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/pcsc-lite/+bug/1551897/+subscriptions

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