Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/2043183
Title:
kernel NULL pointer dereference with qBittorrent under heavy
Status in linux package in Ubuntu:
Confirmed
Bug description:
When qBittorrent is running heavy mmap-based I/O workload on XFS, a
"kernel NULL pointer dereference" pops up in a few hours, making the
process in D state and I have to reboot the whole system. Stack trace
is supplied as an attachment.
Tested affected kernels (all hwe-22.04):
- linux-image-5.19.0-41-generic
- linux-image-5.19.0-42-generic
- linux-image-5.19.0-43-generic
- linux-image-6.2.0-34-generic
- linux-image-6.2.0-36-generic
Tested unaffected (all "stock", non-hwe):
- linux-image-5.15.0-76-generic
- (basically every 5.15 is unaffected)
- linux-image-5.15.0-86-generic
- linux-image-5.15.0-88-generic
Based on information gathered online, I believe I am running into the
exact same problem as
<https://bugzilla.kernel.org/show_bug.cgi?id=216646>, also
<https://github.com/arvidn/libtorrent/issues/6952>
I believe adding upstream cbc02854331edc6dc22d8b77b6e22e38ebc7dd51
(first seen in 6.6-rc1, backported to 6.5.3 and 6.1.53) should solve
this problem. Is this going to happen soon to hwe-22.04?
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