Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Thanks again. The driver module is sas_megaraid (I'm using Debian 2.6.18 dm-crypt, not RedHat). Am 15.12.2008 um 15:35 schrieb Lars Ellenberg: > On Mon, Dec 15, 2008 at 03:14:28PM +0100, Thomas Reinhold wrote: >> Thanks for your quick answer. >> >> This is the complete error message (I shoud have posted that in the >> first >> place, sorry): >> >> >> Dec 11 21:47:56 bftest-54 kernel: FAILED >> Dec 11 21:47:56 bftest-54 kernel: status = 1, message = 00, >> host = 0, driver = 08 >> Dec 11 21:47:56 bftest-54 kernel: <6>sd: Current: sense key: >> Illegal Request >> Dec 11 21:47:56 bftest-54 kernel: Additional sense: Invalid >> command operation code > > well, that is from the scsi layer. > and yes, that is exactly the decoded scsi_execute_req return value > 0x8000002 ;) > >> Dec 11 21:47:56 bftest-54 kernel: drbd0: local disk flush failed >> with >> status 134217730 >> >> What I forgot to mention is that DRBD runs on top of a dm device >> (dm-crypt), >> which in turn runs on top of the raid array. Could that cause the >> problem? > > I was not aware that redhat has patched its 2.6.18 dm-crypt to > (pretend to?) support flushed/barriers. > > but that should be irrelevant in this context. > > apparendly your lower level driver (what driver module is in use?) > does > not support flush requests, or something in the device mapper stack > converts the flush request into something that the driver does not > understand. > > we may consider to handle any return value != 0 in the same way in > drbd. > meanwhile, the correct fix is: > >> I have disabled disk flushing for now, and the error >> obiously has gone. > > -- > : Lars Ellenberg > : LINBIT | Your Way to High Availability > : DRBD/HA support and consulting http://www.linbit.com > > DRBD® and LINBIT® are registered trademarks of LINBIT, Austria. > __ > please don't Cc me, but send to list -- I'm subscribed > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20081215/a763e6c0/attachment.htm>