Ubuntu 23.10 (Mantic Minotaur) has reached end of life, so this bug will
not be fixed for that specific release.
** Changed in: linux (Ubuntu Mantic)
Status: In Progress => Won't Fix
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2036777
Title:
[SRU] Fnic driver on needs to be updated to 1.6.0.57 on Jammy
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Jammy:
In Progress
Status in linux source package in Lunar:
Won't Fix
Status in linux source package in Mantic:
Won't Fix
Status in linux source package in Noble:
Fix Released
Bug description:
[Impact]
fnic_clean_pending_aborts() was returning a non-zero value
irrespective of failure or success.
This caused the caller of this function to assume that the
device reset had failed, even though it would succeed in
most cases. As a consequence, a successful device reset
would escalate to host reset.
sgreset is issued with a scsi command pointer.
The device reset code assumes that it was issued
on a hardware queue, and calls block multiqueue
layer. However, the assumption is broken, and
there is no hardware queue associated with the
sgreset, and this leads to a crash due to a
null pointer exception.
[Fix]
Fix the code to use the max_tag_id as a tag
which does not overlap with the other tags
issued by mid layer.
Below are the kernel patches which picked for the newer version of
fins driver.
924cb24df4fc scsi: fnic: Stop using the SCSI pointer
b559b99a5c081 scsi: fnic: Replace DMA mask of 64 bits with 47 bits
5a43b07a87835 scsi: fnic: Replace return codes in
fnic_clean_pending_aborts()
15924b0503630 scsi: fnic: Replace sgreset tag with max_tag_id
514f0c400bde6 scsi: fnic: Fix sg_reset success path
[Test Plan]
Tested by running FC traffic for a few minutes,
and by issuing sgreset on the device in parallel.
Without the fix, the crash is observed right away.
With this fix, no crash is observed.
sg_reset performs a device reset/lun reset on a lun.
Since it is issued by the user, it does not come into the
driver with a tag or a queue id.
Fix the fnic driver to create an io_req and use a scsi command tag.
Fix the ITMF path to special case the sg_reset response.
[ Where problems could occur ]
[ Other Info ]
Jammy
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/jammy/+ref/fnic_11_10_23
Mantic
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/mantic/+ref/fnic_update_2036777
Links to first 3 patches
https://lore.kernel.org/lkml/[email protected]/
https://lore.kernel.org/lkml/[email protected]/
https://lore.kernel.org/lkml/[email protected]/
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2036777/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
