Messages in this thread | | | Date | Sun, 21 Feb 1999 14:51:38 +0100 | From | Paul Slootman <> | Subject | Re: 2.2.1-ac6 CDROM bug (not in 2.2.1-vanilla) |
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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
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