Hello,
after upgrading some servers from 4.9 to a kernel > 4.11 i saw a
regression where i cannot boot into the os.
The kernel is crashing in the isci (NOT iscsi) driver in task abort.
Message:
Unable to handle kernel NULL pointer dereference at isci_task_abort_task
git bisect detected the following offending commit:
909657615d9b3ce709be4fd95b9a9e8c8c7c2be6 is the first bad commit
commit 909657615d9b3ce709be4fd95b9a9e8c8c7c2be6
Author: Christoph Hellwig <hch@xxxxxx>
Date: Thu Apr 6 15:36:32 2017 +0200
scsi: libsas: allow async aborts
We now first try to call ->eh_abort_handler from a work queue, but
libsas
was always failing that for no good reason. Allow async aborts.
Reviewed-by: Johannes Thumshirn <jth@xxxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
:040000 040000 b15f1eb57bf74667aefb7a304fa09bf58386eaf2
64df540499763db44c7e1b6ec9a55ffa9b2ebedc M drivers
i can't grab much information except for a photo as the boot process is
before netconsole or others can jump in.
The caller of isci_task_abort_task seems to be sas_eh_abort_handler.
Thanks!
Greets,
Stefan
