Re: 2.6.16-rc1 crash in scsi_target_reap_work

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 On Sat, Feb 11, Olaf Hering wrote:

>  On Fri, Feb 10, Brian King wrote:
> 
> > >    release = 0xd0000000002190c0}, reap_ref = 0, channel = 255, id = 100, 
> > >    create = 0, scsi_level = 0 '\0', hostdata = 0x0, starget_data = 
> > >    0x1ffffffec60}
> >                                                    ^^^^^^^^^^^^^
> > 
> > This is interesting.. This means that it is on ipr's logical scsi bus 
> > (255). Assuming this is
> > happening at boot time and not due to a user initiated scan through sysfs, 
> > this
> > means we are going through the scsi_add_device path, rather than the 
> > scsi_scan_host
> > path...
> 
> I forgot to attach my notes from the crash, it contains parts of the bootlog.

poking around a bit further (after reboot and another crash):

cpu0 idle
cpu1 idle
cpu2 udevd runs, starts to do lstat on 
2:mon> d 00000000ffdd3560 123
00000000ffdd3560 2f7379732f646576 696365732f706369  |/sys/devices/pci|
00000000ffdd3570 303030303a303000 303030303a30303a  |0000:00.0000:00:|
00000000ffdd3580 30322e3000303030 303a63303a30312e  |02.0.0000:c0:01.|
00000000ffdd3590 3000686f73743000 746172676574303a  |0.host0.target0:|
00000000ffdd35a0 303a3300303a303a 333a3000f800f018  |0:3.0:0:3:0.....|

cpu3 udevd runs, starts to open 
3:mon> d 00000000ffdd3aa8 123
00000000ffdd3aa8 2f6465762f2e7564 65762f64622f626c  |/dev/.udev/db/bl|
00000000ffdd3ab8 6f636b4073646100 ffdd3ad01000a608  |ock@xxxxxx:.....|

cpu4 vol_id runs, about to compat_sys_execve /sbin/vol_id
cpu5 crashed in events/5
cpu6 idle
cpu7 vol_id runs, starts to open /lib/libc.so.6

-- 
short story of a lazy sysadmin:
 alias appserv=wotan
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