* bdev lost its queue
@ 2008-09-01 13:48 Stefan Raspl
0 siblings, 0 replies; only message in thread
From: Stefan Raspl @ 2008-09-01 13:48 UTC (permalink / raw)
To: device-mapper development
We conducted a bunch tests where we used various ways to forcefully
disconnect or temporarily disable DASD disks from an IBM System z
machine. In the course we ran into a kernel panic in
dm_table_unplug_all() (dm-table.c), specifically at
struct request_queue *q = bdev_get_queue(dd->bdev);
blk_unplug(q);
since the queue of the bdev was NULL.
Did anyone see a crash in this place before? And are there other disk
drivers to can set their queue to NULL due to unplugging/outages or similar?
Best regards,
Stefan
--
Linux on System z
IBM Deutschland Research & Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschäftsführer: Erich Baier
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2008-09-01 13:48 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-09-01 13:48 bdev lost its queue Stefan Raspl
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).