From: James Bottomley <James.Bottomley@SteelEye.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Mike Anderson <andmike@us.ibm.com>,
SCSI development list <linux-scsi@vger.kernel.org>
Subject: Re: BUG: CD driver sends command during host removal
Date: 11 Oct 2004 15:12:50 -0500 [thread overview]
Message-ID: <1097525576.2031.173.camel@mulgrave> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0410111558460.21084-100000@netrider.rowland.org>
On Mon, 2004-10-11 at 15:03, Alan Stern wrote:
> The problem arises when a command completes. In the notified ejection
> case, if the LLD tries to call the scsi_done routine for a completed
> command which was submitted before scsi_remove_host and which the SCSI
> core has already cleaned up, it will cause an oops. Since the LLD has no
> way to tell whether the core has cleaned up a command or not, its only
> choice is to fail _every_ command starting shortly before it calls
> scsi_remove_host.
This is the remove implies cancel issue that was discussed earlier. I
thought the proposal was to have a remove that wouldn't automatically
cancel all the commands? ... although I don't think I've seen any code
for that case yet.
James
next prev parent reply other threads:[~2004-10-11 20:13 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-11 19:20 BUG: CD driver sends command during host removal Alan Stern
2004-10-11 19:36 ` James Bottomley
2004-10-11 20:03 ` Alan Stern
2004-10-11 20:12 ` James Bottomley [this message]
2004-10-11 20:40 ` Mike Anderson
2004-10-11 21:15 ` James Bottomley
2004-10-11 23:13 ` Mike Anderson
[not found] <20040926082926.GA1944@uniball>
2004-09-27 18:18 ` Alan Stern
2004-09-27 18:51 ` Mohammed Sameer
2004-09-29 16:06 ` Luben Tuikov
2004-09-29 16:55 ` Alan Stern
2004-09-29 17:09 ` Mike Anderson
2004-09-29 18:02 ` Luben Tuikov
2004-09-29 18:09 ` James Bottomley
2004-09-29 18:58 ` Luben Tuikov
2004-09-29 19:39 ` James Bottomley
2004-09-29 19:01 ` Alan Stern
2004-09-29 19:27 ` Mike Anderson
2004-09-29 19:33 ` Luben Tuikov
2004-09-29 19:50 ` James Bottomley
2004-09-29 20:31 ` Mike Anderson
2004-09-29 20:41 ` James Bottomley
2004-09-29 21:07 ` Mike Anderson
2004-09-29 21:14 ` James Bottomley
2004-09-29 21:20 ` Luben Tuikov
2004-09-29 21:26 ` James Bottomley
2004-09-29 21:20 ` Alan Stern
2004-10-02 23:57 ` Mohammed Sameer
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