From: Andrew Morton <akpm@linux-foundation.org>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>,
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-ide@vger.kernel.org
Subject: Re: block/bsg.c
Date: Tue, 17 Jul 2007 14:34:34 -0700 [thread overview]
Message-ID: <20070717143434.48836fb8.akpm@linux-foundation.org> (raw)
In-Reply-To: <200707172252.25729.bzolnier@gmail.com>
On Tue, 17 Jul 2007 22:52:25 +0200
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote:
> ide-{disk,scsi,tape} don't support REQ_TYPE_BLOCK_PC requests et all
> (so attempts to use SG_IO, CDROM_SEND_PACKET and SCSI_IOCTL_SEND_COMMAND
> will result in requests being failed and error messages in the kernel logs).
In my case it results in a completely tits-up machine. CPU stuck somewhere
spinning with local interrutps disabled.
If you see the log output I sent, I'm suspecting this might be because
this BSG brainfart has exposed underlying bugs in IDE or SCSI.
Note that I saw literally 20,000 lines of output in the bit which I snipped,
so something has gone pretty wild in the handling of these bogus commands.
next prev parent reply other threads:[~2007-07-17 21:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070717065940.GZ5195@kernel.dk>
[not found] ` <20070717190705T.fujita.tomonori@lab.ntt.co.jp>
[not found] ` <20070717101928.GK5195@kernel.dk>
2007-07-17 20:52 ` block/bsg.c Bartlomiej Zolnierkiewicz
2007-07-17 21:34 ` Andrew Morton [this message]
2007-07-17 23:19 ` block/bsg.c Bartlomiej Zolnierkiewicz
2007-07-17 22:26 ` block/bsg.c FUJITA Tomonori
2007-07-18 20:39 ` block/bsg.c Bartlomiej Zolnierkiewicz
2007-07-18 23:44 ` block/bsg.c FUJITA Tomonori
[not found] <20070716165706.348f6bbf.akpm@linux-foundation.org>
[not found] ` <200707180243.13368.bzolnier@gmail.com>
[not found] ` <1184767917.3464.13.camel@localhost.localdomain>
2007-07-18 20:32 ` block/bsg.c Bartlomiej Zolnierkiewicz
2007-07-18 21:32 ` block/bsg.c James Bottomley
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