[Kernel-packages] [Bug 1800562] Re: Replace "nousb" option in kdump command-line for the newer "usbcore.nousb"

2019-02-14 Thread Heitor R. Alves de Siqueira
** Description changed:

- Since kernel v4.5, the correct parameter to disable USB subsystem
- initialization is "usbcore.nousb" always (instead of "nousb" in case the
- subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb:
- make "nousb" a clear module parameter").
+ [Impact]
+ Crash kernels come up with the usb subsystem enabled, even when it should be 
disabled by default.
+ 
+ 
+ [Description]
+ Since kernel v4.5, the correct parameter to disable USB subsystem 
initialization is "usbcore.nousb" always (instead of "nousb" in case the 
subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb: make 
"nousb" a clear module parameter").
  
  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.
+ 
+ This affects Xenial onwards, since the system may be running an HWE or
+ other supported v4.5+ kernel.
+ 
+ [Test Case]
+ 1) Deploy a Disco VM e.g. with uvt-kvm
+ 2) Install the kdump-tools package
+ 3) Run `kdump-config test`and check for the 'usbcore.nousb' parameter:
+ 
+ $ kdump-config test
+ [...]
+ kexec command to be used:
+   /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic 
root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll nousb ata_piix.prefer_ms_hyperv=0" 
/var/lib/kdump/vmlinuz
+ 
+ [Regression Potential]
+ The regression potential is very low, since it doesn't need any changes in 
makedumpfile and we're only adding a parameter on the crashkernel cmdline.
+ According to kernel documentation [0], unknown parameters will be ignored if 
they contain a dot (usbcore.nousb), so this change should have no impact on 
v4.4 and earlier kernels.
+ Nonetheless, the fix will be tested with autopkgtests and normal kdump 
use-case scenarios.

** Description changed:

  [Impact]
  Crash kernels come up with the usb subsystem enabled, even when it should be 
disabled by default.
- 
  
  [Description]
  Since kernel v4.5, the correct parameter to disable USB subsystem 
initialization is "usbcore.nousb" always (instead of "nousb" in case the 
subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb: make 
"nousb" a clear module parameter").
  
  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.
  
  This affects Xenial onwards, since the system may be running an HWE or
  other supported v4.5+ kernel.
  
  [Test Case]
  1) Deploy a Disco VM e.g. with uvt-kvm
  2) Install the kdump-tools package
  3) Run `kdump-config test`and check for the 'usbcore.nousb' parameter:
  
  $ kdump-config test
  [...]
  kexec command to be used:
-   /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic 
root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll nousb ata_piix.prefer_ms_hyperv=0" 
/var/lib/kdump/vmlinuz
+   /sbin/kexec -p --command-line="BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic 
root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 nr_cpus=1 
systemd.unit=kdump-tools.service irqpoll nousb ata_piix.prefer_ms_hyperv=0" 
/var/lib/kdump/vmlinuz
  
  [Regression Potential]
  The regression potential is very low, since it doesn't need any changes in 
makedumpfile and we're only adding a parameter on the crashkernel cmdline.
  According to kernel documentation [0], unknown parameters will be ignored if 
they contain a dot (usbcore.nousb), so this change should have no impact on 
v4.4 and earlier kernels.
  Nonetheless, the fix will be tested with autopkgtests and normal kdump 
use-case scenarios.
+ 
+ [0] https://www.kernel.org/doc/Documentation/admin-guide/kernel-
+ parameters.rst

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Title:
  Replace "nousb" option in kdump command-line for the newer
  "usbcore.nousb"

Status in makedumpfile package in Ubuntu:
  Confirmed
Status in makedumpfile source package in Xenial:
  Confirmed
Status in makedumpfile source package in Bionic:
  Confirmed
Status in makedumpfile source package in Cosmic:
  Confirmed
Status in makedumpfile source package in Disco:
  Confirmed

Bug description:
  [Impact]
  Crash kernels come up with the usb subsystem enabled, even when it should be 
disabled by default.

  [Description]
  Since kernel v4.5, the correct parameter to disable USB subsystem 
initialization is "usbcore.nousb" always (instead of "nousb" in case the 
subsystem is built-in). This was changed by commit 097a9ea0e48 ("usb: make 
"nousb" a clear module parameter").

  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.

  This affects Xenial onwards, since the system may be running an HWE or
  other supported v4.5+ kernel.

  [Test Case]
  

[Kernel-packages] [Bug 1800562] Re: Replace "nousb" option in kdump command-line for the newer "usbcore.nousb"

2019-02-14 Thread Guilherme G. Piccoli
** Changed in: makedumpfile (Ubuntu Xenial)
 Assignee: Guilherme G. Piccoli (gpiccoli) => Heitor R. Alves de Siqueira 
(halves)

** Changed in: makedumpfile (Ubuntu Bionic)
 Assignee: Guilherme G. Piccoli (gpiccoli) => Heitor R. Alves de Siqueira 
(halves)

** Changed in: makedumpfile (Ubuntu Cosmic)
 Assignee: Guilherme G. Piccoli (gpiccoli) => Heitor R. Alves de Siqueira 
(halves)

** Changed in: makedumpfile (Ubuntu Disco)
 Assignee: Guilherme G. Piccoli (gpiccoli) => Heitor R. Alves de Siqueira 
(halves)

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https://bugs.launchpad.net/bugs/1800562

Title:
  Replace "nousb" option in kdump command-line for the newer
  "usbcore.nousb"

Status in makedumpfile package in Ubuntu:
  Confirmed
Status in makedumpfile source package in Xenial:
  Confirmed
Status in makedumpfile source package in Bionic:
  Confirmed
Status in makedumpfile source package in Cosmic:
  Confirmed
Status in makedumpfile source package in Disco:
  Confirmed

Bug description:
  Since kernel v4.5, the correct parameter to disable USB subsystem
  initialization is "usbcore.nousb" always (instead of "nousb" in case
  the subsystem is built-in). This was changed by commit 097a9ea0e48
  ("usb: make "nousb" a clear module parameter").

  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1800562/+subscriptions

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[Kernel-packages] [Bug 1800562] Re: Replace "nousb" option in kdump command-line for the newer "usbcore.nousb"

2019-01-09 Thread Guilherme G. Piccoli
** Changed in: makedumpfile (Ubuntu Cosmic)
   Status: New => Confirmed

** Changed in: makedumpfile (Ubuntu Bionic)
   Status: New => Confirmed

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

** Changed in: makedumpfile (Ubuntu Cosmic)
   Importance: Undecided => High

** Changed in: makedumpfile (Ubuntu Bionic)
   Importance: Undecided => High

** Changed in: makedumpfile (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: makedumpfile (Ubuntu Xenial)
 Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)

** Changed in: makedumpfile (Ubuntu Bionic)
 Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)

** Changed in: makedumpfile (Ubuntu Cosmic)
 Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to makedumpfile in Ubuntu.
https://bugs.launchpad.net/bugs/1800562

Title:
  Replace "nousb" option in kdump command-line for the newer
  "usbcore.nousb"

Status in makedumpfile package in Ubuntu:
  Confirmed
Status in makedumpfile source package in Xenial:
  Confirmed
Status in makedumpfile source package in Bionic:
  Confirmed
Status in makedumpfile source package in Cosmic:
  Confirmed
Status in makedumpfile source package in Disco:
  Confirmed

Bug description:
  Since kernel v4.5, the correct parameter to disable USB subsystem
  initialization is "usbcore.nousb" always (instead of "nousb" in case
  the subsystem is built-in). This was changed by commit 097a9ea0e48
  ("usb: make "nousb" a clear module parameter").

  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1800562/+subscriptions

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[Kernel-packages] [Bug 1800562] Re: Replace "nousb" option in kdump command-line for the newer "usbcore.nousb"

2019-01-09 Thread Eric Desrochers
** Also affects: makedumpfile (Ubuntu Bionic)
   Importance: Undecided
   Status: New

** Also affects: makedumpfile (Ubuntu Cosmic)
   Importance: Undecided
   Status: New

** Also affects: makedumpfile (Ubuntu Disco)
   Importance: High
 Assignee: Guilherme G. Piccoli (gpiccoli)
   Status: Confirmed

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

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to makedumpfile in Ubuntu.
https://bugs.launchpad.net/bugs/1800562

Title:
  Replace "nousb" option in kdump command-line for the newer
  "usbcore.nousb"

Status in makedumpfile package in Ubuntu:
  Confirmed
Status in makedumpfile source package in Xenial:
  New
Status in makedumpfile source package in Bionic:
  New
Status in makedumpfile source package in Cosmic:
  New
Status in makedumpfile source package in Disco:
  Confirmed

Bug description:
  Since kernel v4.5, the correct parameter to disable USB subsystem
  initialization is "usbcore.nousb" always (instead of "nousb" in case
  the subsystem is built-in). This was changed by commit 097a9ea0e48
  ("usb: make "nousb" a clear module parameter").

  We need to take this into account in kdump-tools, or else we may boot
  with USB in kdump even the command-line saying the opposite.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1800562/+subscriptions

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