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Message-ID: <20130605145313.GC32665@kernel.dk> Date: Wed, 5 Jun 2013 16:53:13 +0200 From: Jens Axboe <axboe@...nel.dk> To: hari krishnan <p.harikrishnan22@...il.com> Cc: linux-kernel@...r.kernel.org Subject: Re: Bug found in block/scsi_ioctl.c On Wed, Jun 05 2013, hari krishnan wrote: > I got a kernel crash, and dump is pointing to "IP: [<ffffffff81260e86>] > sg_scsi_ioctl+0x166/0x3b0". > > Test case: *I was just deleting few NPIV port to which some of LUN's where > exported, after sometime I was running parted on some devices"* > > The crash is in sg_scsi_ioctl of block/scsi_ioctl.c. > From code and dump it seems sg_scsi_ioctl is allocating request by calling > blk_get_request and assuming it will never fail, but it will fail if device > is dead, here in this case some of SCSI devices are dead. It's a known bug, Joe Lawrence has posted a patch to fix it up that will be muscled into 3.10. Can you give it a go? http://www.spinics.net/lists/linux-scsi/msg66294.html -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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