lkml.org 
[lkml]   [1999]   [Feb]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.2.1-ac6 CDROM bug (not in 2.2.1-vanilla)
linux-kernel@gmx.de wrote:
>On a system with 2 SCSI CD-ROM drives, the mount system call hangs at
>bootup when both drives are empty; the kernel says
>"bug: kernel timer added twice at c0181471.".
>
>The c0181471 address is nowhere near the functions listed in ksyms.

Actually, I expect it's in scsi_sleep(), in scsi_error.c.
I get c0199e95. and according to /proc/ksyms: c0199e24 scsi_sleep_R35962bf8
(close enough). scsi_sleep() calls "add_timer(&timer)".

I can reproduce this by inserting a cdrom, and issuing a mount command
before the drive is ready. Plain 2.2.1 does NOT have this problem;
there, the attempt is retried after a couple of seconds, and then
succeeds. On 2.2.1-ac6, the mount process hangs in state 'D', and can
only be fixed by rebooting.

FYI: Buslogic 958 with Plextor PX-12CS on Tyan Titan III with Winchip 240
(CentaurHauls C6-2 according to /proc/cpuinfo).


Paul Slootman
--
home: paul@wurtel.demon.nl | work: paul@murphy.nl | debian: paul@debian.org
http://www.wurtel.demon.nl | Murphy Software, Enschede, the Netherlands

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:50    [W:0.075 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site