From: christophe.varoqui@free.fr
To: linux-scsi@vger.kernel.org
Subject: [BUG] scsi / genhd badness
Date: Mon, 28 Oct 2002 16:20:30 +0100 (MET) [thread overview]
Message-ID: <1035818430.3dbd55be25447@imp.free.fr> (raw)
Hello,
I'd like to report an annoying behaviour :
On a server with scsi disk behind an aic7xxx, kernel 2.5.44-ac4, each time I
remove a disk from the linux scsi subsystem (echo "scsi remove-single-device a
b c d">/proc/scsi/scsi) I get the following oops (server survive) :
Badness in put_device at drivers/base/core.c:139
Call Trace:
[<c01d12ae>] put_device+0xde/0xf0
[<c022c1ff>] sg_detach+0x8f/0x1f0
[<c02121d8>] proc_scsi_gen_write+0x338/0x4b0
[<c014d6c6>] open_namei+0xa6/0x400
[<c01658e0>] proc_file_write+0x40/0x50
[<c014047c>] vfs_write+0xdc/0x150
[<c014058e>] sys_write+0x3e/0x60
[<c010772b>] syscall_call+0x7/0xb
the block event gets passed to the hotplug layer.
Driverfs loose the $driverfs/bus/block/device/ (and $driverfs/root/) disk entry
: right
On the other hand, when I re-add this disk, hotplug is not notified and disk
entry does not re-appear in driverfs.
Other sybsystems are not similarily affected : device-mapper gives the oops on
device map removal but devmap addition get rightly notified to userspace.
Is it a known short-coming ?
regards,
cvaroqui
next reply other threads:[~2002-10-28 15:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-28 15:20 christophe.varoqui [this message]
2002-10-28 18:05 ` [BUG] scsi / genhd badness Mike Anderson
2002-10-28 18:19 ` christophe varoqui
2002-10-29 8:23 ` christophe.varoqui
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