Russell Cattelan [cattelan@xxxxxxxxxxx] wrote:
> Utz Lehmann wrote:
>
> > Russell Cattelan [cattelan@xxxxxxxxxxx] wrote:
> >
>
> Ok sorry this was my fault I should have explained this better.
> We need the back trace of the umount process.
> to do this simply type ps from the kdb prompt find the umount pid
> the type
> kdb> btp <umount pid>
No problem:
Unmounting file systems
shmfs umounted
/dev/sda2 umounted
/dev/vg00/tmp umounted
/dev/vg00/opt umounted
Entering kdb (current=0xc035a000, pid 0) due to Keyboard Entry
kdb> ps
Task Addr Pid Parent [*] cpu State Thread Command
0xc15fe000 00000001 00000000 0 000 stop 0xc15fe260 init
0xc15f0000 00000002 00000001 0 000 stop 0xc15f0260 keventd
0xc15ec000 00000003 00000001 0 000 stop 0xc15ec260 kswapd
0xc15ea000 00000004 00000001 0 000 stop 0xc15ea260 kreclaimd
0xc15e8000 00000005 00000001 0 000 stop 0xc15e8260 bdflush
0xc15e6000 00000006 00000001 0 000 stop 0xc15e6260 kupdate
0xc1580000 00000007 00000001 0 000 stop 0xc1580260 mdrecoveryd
0xc1562000 00000008 00000001 0 000 stop 0xc1562260 pagebuf_daemon
0xce0b8000 00001130 00000001 0 000 stop 0xce0b8260 rc
0xce268000 00001520 00001130 0 000 stop 0xce268260 S20reboot
0xcf83c000 00001541 00001520 0 000 stop 0xcf83c260 umount
kdb> btp 1541
EBP EIP Function(args)
0xcf83de58 0xc0112b18 schedule+0x2d8
kernel .text 0xc0100000 0xc0112840 0xc0112c70
0xc015fb13 pagebuf_iorequest+0x103 (0xcf6ca480)
kernel .text 0xc0100000 0xc015fa10 0xc015fba0
0xc01c7c47 xfs_bdstrat_cb+0x27 (0xcf6ca480)
kernel .text 0xc0100000 0xc01c7c20 0xc01c7c70
0xc0160763 pagebuf_delwri_flush+0xd3 (0xcf7b5ac0, 0x1, 0xcf83dec8)
kernel .text 0xc0100000 0xc0160690 0xc0160880
0xc01c7d2d XFS_bflush+0x1d (0xcf7b5ac0, 0x3a01)
kernel .text 0xc0100000 0xc01c7d10 0xc01c7d40
0xc01b6873 xfs_unmount+0xd3 (0xcf7aa400, 0x0, 0xc03b16a0)
kernel .text 0xc0100000 0xc01b67a0 0xc01b6920
0xc01c189a fs_dounmount+0x5a (0xcf7aa400, 0x0, 0x0, 0xc03b16a0,
0xcf7b5dc4)
kernel .text 0xc0100000 0xc01c1840 0xc01c18c0
0xc01c8d38 linvfs_put_super+0x58 (0xcf8eb800)
kernel .text 0xc0100000 0xc01c8ce0 0xc01c8db0
0xc0136867 kill_super+0x87 (0xcf8eb800, 0x0, 0xc156cec0, 0xffffffff,
0xcfb29ac0)
kernel .text 0xc0100000 0xc01367e0 0xc0136920
0xc0136c71 do_umount+0x1c1 (0xc156cec0, 0x0, 0x0)
kernel .text 0xc0100000 0xc0136ab0 0xc0136c80
0xc0136d46 sys_umount+0xc6 (0x8052430, 0x0)
more>
kernel .text 0xc0100000 0xc0136c80 0xc0136d80
0xc0136d8c sys_oldumount+0xc (0x8052430, 0x804ee27, 0x8052478,
0x8052431, 0x804ee20)
kernel .text 0xc0100000 0xc0136d80 0xc0136d90
0xc0108f77 system_call+0x33
kernel .text 0xc0100000 0xc0108f44 0xc0108f7c
kdb> reboot
btw: 1 of ca. 7 tries the umount works.
utz
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