Patch was included in focal/groovy in Ubuntu-5.4.0-18.22
** Changed in: linux (Ubuntu Groovy)
Status: Confirmed => Fix Released
** Changed in: linux (Ubuntu Focal)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1877620
Title:
Backport of Patch "ata: ahci: Add shutdown to freeze hardware
resources of ahci"
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux source package in Eoan:
Fix Released
Status in linux source package in Focal:
Fix Released
Status in linux source package in Groovy:
Fix Released
Bug description:
Issue
--------------
During our internal testing, we found an issue for kexec -e.
Using kexec to reboot works mostly, but ~1 of 5 times the system fails
to reboot. SATA failures in new kernel resulting in drop to initramfs
as rootfs isn't loadable.
Error log for 1)
[ 47.384805] ata1: failed to reset engine (errno=-5)
[ 47.384805] ata1: failed to reset engine (errno=-5)
[ 51.529054] ata1: softreset failed (1st FIS failed)
[ 51.529054] ata1: softreset failed (1st FIS failed)
[ 57.888800] ata1: failed to reset engine (errno=-5)
[ 57.888800] ata1: failed to reset engine (errno=-5)
[ 62.037258] ata1: softreset failed (1st FIS failed)
[ 62.037258] ata1: softreset failed (1st FIS failed)
[ 68.396807] ata1: failed to reset engine (errno=-5)
[ 68.396807] ata1: failed to reset engine (errno=-5)
Solution
--------
https://patchwork.ozlabs.org/patch/1229154/ i.e. ata: ahci: Add shutdown to
freeze hardware resources of ahci needs to applied to all applicable Linux
version.
Please note this patch is already applied to main-line and back-ported
to 4.9, 4.14, 4.19, 5.4 and 5.5
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