Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-03-09 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  ahf
 Type:  defect   | Status:
 |  assigned
 Priority:  High |  Milestone:  Tor:
 |  0.4.4.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  044-should, cpu, windows, linux, |  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:  2
 Reviewer:   |Sponsor:
-+-
Changes (by ahf):

 * owner:  (none) => ahf
 * status:  new => assigned


--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-03-09 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:  new
 Priority:  High |  Milestone:  Tor:
 |  0.4.4.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  044-should, cpu, windows, linux, |  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:  2
 Reviewer:   |Sponsor:
-+-

Comment (by gk):

 FWIW, we have another relay operator who [comment:2:ticket:33469
 confirmed] disabling `DirCache` on their Windows relay solves the CPU
 problem for 0.3.5.x.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-02-26 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:  new
 Priority:  High |  Milestone:  Tor:
 |  0.4.4.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  044-should, cpu, windows, linux, |  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:  2
 Reviewer:   |Sponsor:
-+-
Changes (by nickm):

 * priority:  Medium => High
 * status:  needs_revision => new


Comment:

 I'm calling this "new" -- needs_revisions is misleading.  Though there is
 a plausible outline above for what should go into a patch, there is not
 actually a patch for somebody to revise IIUC

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-02-21 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  0.4.4.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  044-should, cpu, windows, linux, |  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:  2
 Reviewer:   |Sponsor:
-+-

Comment (by teor):

 A Windows relay operators has confirmed that setting DirCache 0 resolves
 this issue:
 https://lists.torproject.org/pipermail/tor-
 relays/2020-February/018165.html

 They can help test any Windows patches for this issue, once the patch is
 in the Tor Expert Bundle.
 So I guess that means a Tor Browser Alpha?

 Alternatively, as a workaround, we could make DirCache default to 0 on
 Windows. I'll open a child ticket.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-02-17 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  0.4.4.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  044-should, cpu, windows, linux, |  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:  2
 Reviewer:   |Sponsor:
-+-
Changes (by teor):

 * keywords:
 042-can, cpu, windows, linux, performance, regression,
 033-triage-20180326, 033-removed-20180326, 034-deferred-20180602,
 035-removed-20180711, 032-unreached-backport, 040-roadmap-proposed,
 033-unreached-backport-maybe, network-health
 =>
 044-should, cpu, windows, linux, performance, regression,
 033-triage-20180326, 033-removed-20180326, 034-deferred-20180602,
 035-removed-20180711, 032-unreached-backport, 040-roadmap-proposed,
 033-unreached-backport-maybe, network-health
 * points:   => 2
 * milestone:  Tor: unspecified => Tor: 0.4.4.x-final


Comment:

 Some operators are giving up on Windows relays due to this issue, so maybe
 we should look at it in 0.4.4.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-02-17 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  042-can, cpu, windows, linux,|  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe, network-health  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by gk):

 * keywords:
 042-can, cpu, windows, linux, performance, regression,
 033-triage-20180326, 033-removed-20180326, 034-deferred-20180602,
 035-removed-20180711, 032-unreached-backport, 040-roadmap-proposed,
 033-unreached-backport-maybe
 =>
 042-can, cpu, windows, linux, performance, regression,
 033-triage-20180326, 033-removed-20180326, 034-deferred-20180602,
 035-removed-20180711, 032-unreached-backport, 040-roadmap-proposed,
 033-unreached-backport-maybe, network-health


--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2020-02-11 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  042-can, cpu, windows, linux,|  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-

Comment (by arma):

 We have a relay operator in tor-relays@ apparently experiencing this issue
 still:
 https://lists.torproject.org/pipermail/tor-
 relays/2020-February/018136.html

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2019-10-23 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  042-can, cpu, windows, linux,|  Actual Points:
  performance, regression, 033-triage-20180326,  |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by teor):

 * cc: ahf (added)
 * keywords:
 cpu, windows, linux, performance, regression, 033-triage-20180326,
 033-removed-20180326, 034-deferred-20180602, 035-removed-20180711, 032
 -unreached-backport, 040-roadmap-proposed, 033-unreached-backport-
 maybe
 =>
 042-can, cpu, windows, linux, performance, regression,
 033-triage-20180326, 033-removed-20180326, 034-deferred-20180602,
 035-removed-20180711, 032-unreached-backport, 040-roadmap-proposed,
 033-unreached-backport-maybe


Comment:

 Hey ahf, if you have time, there is a Windows patch for this issue in:
 https://trac.torproject.org/projects/tor/ticket/24857#comment:39

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2019-10-23 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-

Comment (by kotenok2000):

 Still happens on 0.4.1.5

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2019-08-09 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-unreached-backport,  |
  040-roadmap-proposed, 033-unreached-backport-  |
  maybe  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-

Comment (by cypherpunks):

 just a short note, when running in relay mode this seems to happen every
 here and there.
 with micro-descriptors the CPU-usage spikes is much less.
 my non-exit relay seems to suffer from this issue too.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2018-11-14 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 034-backport, 033|
  -backport-maybe, 032-unreached-backport, 040   |
  -roadmap-proposed  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by teor):

 * milestone:   => Tor: unspecified


--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2018-11-14 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 034-backport, 033|
  -backport-maybe, 032-unreached-backport, 040   |
  -roadmap-proposed  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by teor):

 * keywords:
 cpu, windows, linux, performance, regression, 033-triage-20180326,
 033-removed-20180326, 034-deferred-20180602, 035-removed-20180711,
 034-backport, 032-unreached-backport
 =>
 cpu, windows, linux, performance, regression, 033-triage-20180326,
 033-removed-20180326, 034-deferred-20180602, 035-removed-20180711,
 034-backport, 033-backport-maybe, 032-unreached-backport, 040-roadmap-
 proposed
 * milestone:  Tor: 0.4.0.x-final =>


Comment:

 We tag tickets 040-roadmap-proposed, then pick some of them for 0.4.0.
 Unfortunately, we don't have time to fix everything.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2018-11-14 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  0.4.0.x-final
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 034-backport, 032|
  -unreached-backport|
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-
Changes (by cypherpunks):

 * keywords:
 cpu, windows, linux, performance, regression, 033-triage-20180326,
 033-removed-20180326, 034-deferred-20180602, 035-removed-20180711, 032
 -backport-maybe, 033-backport-maybe, 034-backport, 032-unreached-
 backport
 =>
 cpu, windows, linux, performance, regression, 033-triage-20180326,
 033-removed-20180326, 034-deferred-20180602, 035-removed-20180711,
 034-backport, 032-unreached-backport
 * milestone:  Tor: unspecified => Tor: 0.4.0.x-final


--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows

2018-08-27 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-backport-maybe, 033  |
  -backport-maybe, 034-backport  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-

Comment (by mestriga):

 > What happens if tor tries to access the memory mapped by the file after
 it's gone?

 I tested it and the memory access works. But I had missed a step in the
 test, and the unlinking is actually delayed if the file is mapped. This is
 handled in the code below by linking the file somewhere else.

 1. Open a handle to the file with the FILE_FLAG_DELETE_ON_CLOSE flag.
 Request DELETE access and allow FILE_SHARE_DELETE to ensure that step 3
 will succeed.

 {{{
 file_handle = fileCreateFile(
     tfilename,
 DELETE,
     FILE_SHARE_DELETE,
     NULL,
     OPEN_ALWAYS,
     FILE_FLAG_DELETE_ON_CLOSE,
     0);

 }}}
 2. Check that the handle is valid, fail if it is not (due to a sharing
 violation or if the file does not exist):

 {{{
 if (file_handle == INVALID_HANDLE_VALUE)
    goto win_err;

 }}}
 3. Put the file somewhere else in the same volume (maybe inside the cache
 directory itself, with a name that the cache can be programmed to ignore).

 {{{
 if (!MoveFile(tfilename, newfilename))
    goto win_err;
 }}}
 4.Close the handle:

 {{{
 CloseHandle(file_handle);

 }}}
 5. If the file is not mapped (or has some other handle to it open), it is
 gone. Otherwise, it will be gone automatically when the last handle to it
 is closed.

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs

Re: [tor-bugs] #24857 [Core Tor/Tor]: Tor uses 100% CPU when accessing the cache directory on Windows (was: tor 0.3.1.9 100% cpu load)

2018-08-26 Thread Tor Bug Tracker & Wiki 
#24857: Tor uses 100% CPU when accessing the cache directory on Windows
-+-
 Reporter:  Eugene646|  Owner:  (none)
 Type:  defect   | Status:
 |  needs_revision
 Priority:  Medium   |  Milestone:  Tor:
 |  unspecified
Component:  Core Tor/Tor |Version:  Tor:
 |  0.3.1.9
 Severity:  Normal   | Resolution:
 Keywords:  cpu, windows, linux, performance,|  Actual Points:
  regression, 033-triage-20180326,   |
  033-removed-20180326, 034-deferred-20180602,   |
  035-removed-20180711, 032-backport-maybe, 033  |
  -backport-maybe, 034-backport  |
Parent ID:  #25500   | Points:
 Reviewer:   |Sponsor:
-+-

--
Ticket URL: 
Tor Bug Tracker & Wiki 
The Tor Project: anonymity online
___
tor-bugs mailing list
tor-bugs@lists.torproject.org
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs