Hi,
Unfortunately, the patch does not seem to solve the problem. Running
Ubuntu 18.04 LTS with kernel 4.15.0-64, the crash still occurs with the
same signature :
Oct 14 08:00:01 uzorldsp01 kernel: [109699.415372] BUG: unable to handle kernel
NULL pointer dereference at 0038
Oct 14 08
Hi Guillaume, thanks for your report! Do you have more details on how
did you reproduce it? It was "organic", or can you trigger that using
some workload or test pattern? Also, based on the log output that you
pasted, seems it took about 30 hours to reproduce, correct? Let me know
if possible the t
Hi Guillaume and all involved, it seems this bug still can occur even
with the backported fix [0]. I found an upstream new fix that is quite
promising, it addresses this specific oops. In the past it was thought
by maintainers that other fix [0] could reduce the likelihood of those
crashes in smb2_
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1795659
Title:
kernel panic using CIFS share in smb2_push_mand
** Also affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux-azure (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Xenial)
** Changed in: linux-azure (Ubuntu Xenial)
Status: New => Fix Committed
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Title:
kernel panic using CIFS share in smb2_p
** Tags added: cscc
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https://bugs.launchpad.net/bugs/1795659
Title:
kernel panic using CIFS share in smb2_push_mandatory_locks()
Status in linux package in Ubuntu:
The new patch merge is being work on
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1856949 (thanks
Juergh and Marcelo for this work). So in case you face this issue in the
future, please use the LP #1856949 for reporting.
Thanks,
Guilherme
** Description changed:
+ NOTICE: The new patch
** Summary changed:
- kernel panic using CIFS share smb2_push_mandatory_locks
+ kernel panic using CIFS share in smb2_push_mandatory_locks()
** Description changed:
- Description:Ubuntu 16.04.5 LTS
- Release:16.04
+ [Impact]
- Kernel: 4.15.0-36-generic #39~16.04.1-Ubuntu SMP Tue S
SRU request sent to kernel-team mailing list:
https://lists.ubuntu.com/archives/kernel-team/2019-July/102354.html
Cheers,
Guilherme
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** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
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Title:
kernel panic using CIFS share in smb2_push_
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verifica
This bug was fixed in the package linux-azure - 4.15.0-1052.57
---
linux-azure (4.15.0-1052.57) xenial; urgency=medium
* xenial/linux-azure: 4.15.0-1052.57 -proposed tracker (LP: #1837632)
* kernel panic using CIFS share in smb2_push_mandatory_locks() (LP: #1795659)
- CIFS: k
** Changed in: linux-azure (Ubuntu)
Status: Confirmed => Fix Released
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Guilherme G. Piccoli (gpiccoli)
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I've validated the -proposed kernel for Bionic (4.15.0-56) using the
xfstests suite mentioned in the description. Interestingly, the patch
seems to fix the test generic/504, which failed both in smb2 and smb3
only in kernel 4.15.0-55. Other than that, the same amount of tests
failed in both cases,
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'. If the problem still exists,
change the tag 'verifica
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