OK, I've explored the fixes, it addresses the issue and I can't
reproduce the problem with the fix testing with the provided reproducer
as referenced in comment #3
** Description changed:
+ == SRU Justification ==
+
+ A silent data corruption was introduced in v4.10-rc1 with commit
+
Thanks for the report, we are investigating the issue and fix.
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Colin Ian King (colin-king)
** No longer affects: linux-signed-hwe (Ubuntu)
** No longer affects: linux-signed-hwe (Ubuntu Bionic)
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According to bug information this is resolved in 4.18 and therefore in
Cosmic/18.10.
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux-signed-hwe (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu
** Package changed: linux-signed (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1796542
Title:
Silent corruption in Linux kernel 4.15
Status in linux package
** Also affects: linux-signed-hwe (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1796542
Title:
Silent corruption in Linux
Some extra information: a tool to reproduce the problem is available in
the linux-block mailing list: https://www.spinics.net/lists/linux-
block/msg28507.html
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Thank you for looking at this bug report.
We have some additional information.
qemu/kvm with cache=none (common) and aio=threads (default) is required
to trigger the bug. aio=native (another common option) does not trigger
it in our testing.
We applied the following patches on top of
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-signed (Ubuntu)
Status: New => Confirmed
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