On 2018-04-24 11:29 AM, Colin Ian King wrote:
> Has this problem re-occurred with more recent kernels?
No it has not occurred again, I'll let you know if it does. Thanks for
investigating!
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After debugging the object code, I can see that the error occurs because
of corruption in the internal AVL tree; the bug occurs during an
insertion into the AVL tree in avl_insert(), namely when nullifying
node->avl_child[0]:
node->avl_child[0] = NULL;
node->avl_child[1] = NULL;
>
** No longer affects: zfs
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https://bugs.launchpad.net/bugs/1749715
Title:
general protection fault in zfs module
Status in zfs-linux package in Ubuntu:
Confirmed
B
@Simon, the log in comment #8 contains different crashes so I'm going to
focus on the original crash report on comment #1. Has this problem re-
occurred with more recent kernels?
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The machine is named "smb" and the attached logs were extract from
syslog with the pattern '^Mar 1[45] [0-9:]+ smb kernel: '.
** Attachment added: "smb.log"
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1749715/+attachment/5114291/+files/smb.log
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The logs would be useful, maybe I can figure out something from them.
Thanks!
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Title:
general protection fault in zfs module
S
@Colin, sorry for the delay, I just checked and
/sys/module/spl/parameters/spl_taskq_thread_dynamic defaults to 0
already.
That said, the issue happens only occasionally. Since I first reported
it, there was only one other event during which it occurred several
times in a row (between 2018-03-14 a
@Simon, any feedback from the suggested help in comment #4?
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https://bugs.launchpad.net/bugs/1749715
Title:
general protection fault in zfs module
Status in Native ZF
There is a similar issue with upstream bug report
https://github.com/zfsonlinux/zfs/issues/6781 - this is not identical
but does have an AVL corruption issue that may be the same root issue.
Note: RSI register is a bit weird, which maybe indicative of AVL
corruption.
** Bug watch added: Github Is
** Changed in: zfs
Status: Unknown => New
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https://bugs.launchpad.net/bugs/1749715
Title:
general protection fault in zfs module
Status in Native ZFS for Linux
If this occurs again, please try:
echo 0 | sudo tee /sys/module/spl/parameters/spl_taskq_thread_dynamic
..and see if this stops the issue from repeating.
** Changed in: zfs-linux (Ubuntu)
Status: In Progress => Incomplete
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** Changed in: zfs-linux (Ubuntu)
Status: Triaged => In Progress
** Changed in: zfs-linux (Ubuntu)
Assignee: (unassigned) => Colin Ian King (colin-king)
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http
** Package changed: linux (Ubuntu) => zfs-linux (Ubuntu)
** Changed in: zfs-linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: zfs-linux (Ubuntu)
Status: Incomplete => Triaged
** Tags added: kernel-da-key
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