> >
> > Exporting an XFS volume with kernel NFSD when real-time subvolume is
> > enabled hangs the kernel.
> >
> > I'm using vanilla LK 2.6.22.7; first I create the XFS volume with
two
> > partitions of 20GB each with extent size of 1MB; then I create a
> > subdirectory in the volume and mark it (using xfs_io util) as it
belongs
> > to the rt subvolume with inheritance flag.
> >
> > After mounting that volume through NFSv3 / UDP; and trying a 'dd
> > if=/dev/zero of=/mnt/rt/test bs=1M count=1000' the machine running
NFSD
> > hangs infinitely.
>
> Did you manage to get a stack trace, OOC? No reason why it shouldn't
> work AFAIK.
I didn't mention that I'm using ARM EABI machine for that; but the same
scenario happened on Ubuntu Gutsy 7.10.
The serial console stops responding, but getting Sysrq with showPc
function working I'v got some stack traces (Look for #stack-trace
below).
I'm running Fedora-8 on the ARM machine using xfsprogs-2.9.4-4.f8 RPM.
The output of formatting /dev/sda5 and /dev/sda6 as the rt-subvolume is
the following, but this time /dev/sda5 is 2GByte and /dev/sda6 is
20GByte (look for #mkfs.xfs).
Another note is that sometimes I'm getting an error message that XFS is
trying to access LBA beyond the volume.
Maybe you can suggest few tests that I can perform to figure out what's
the root cause?
--------------- #mkfs.xfs ----------------------
meta-data=/dev/sda5 isize=256 agcount=8, agsize=61246
blks
= sectsz=512 attr=0
data = bsize=4096 blocks=489968, imaxpct=25
= sunit=0 swidth=0 blks, unwritten=1
naming =version 2 bsize=4096
log =internal log bsize=4096 blocks=2560, version=1
= sectsz=512 sunit=0 blks, lazy-count=0
realtime =/dev/sda6 extsz=1048576 blocks=4885760,
rtextents=19085
-------------- #stack-trace ---------------------
-bash-3.2# SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_iext_get_ext+0x60/0x88
LR is at 0x1ff02
pc : [<c02349b4>] lr : [<0001ff02>] psr: 80000013
sp : c5cb3a68 ip : 000000a8 fp : c5cb3a7c
r10: c5cb3c60 r9 : c5cb3d0c r8 : c5984060
r7 : 0001ffab r6 : 0001ffac r5 : c5cb3c60 r4 : 000fffff
r3 : c5cb3a6c r2 : 0001ffac r1 : 000000aa r0 : c49d1800
Flags: Nzcv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc) r7:0001ffab r6:00000000
r5:00000003 r4:c03d8998 [<c013cfa0>] (handle_level_irq+0x0/0xfc) from
[<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3a20 to 0xc5cb3a68)
3a20: c49d1800 000000aa 0001ffac c5cb3a6c 000fffff c5cb3c60 0001ffac
0001ffab
3a40: c5984060 c5cb3d0c c5cb3c60 c5cb3a7c 000000a8 c5cb3a68 0001ff02
c02349b4
3a60: 80000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c0234954>] (xfs_iext_get_ext+0x0/0x88) from [<c0212c20>]
(xfs_bmap_add_extent_hole_delay+0x54/0x608)
[<c0212bcc>] (xfs_bmap_add_extent_hole_delay+0x0/0x608) from
[<c0214f8c>] (xfs_bmap_add_extent+0x1bc/0x4f8) [<c0214dd0>]
(xfs_bmap_add_extent+0x0/0x4f8) from [<c0215ac4>]
(xfs_bunmapi+0x7fc/0xf38) [<c02152c8>] (xfs_bunmapi+0x0/0xf38) from
[<c0236e9c>] (xfs_itruncate_finish+0x1e4/0x368)
[<c0236cb8>] (xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_trans_dup+0xd0/0xf4
LR is at 0xc60e16b8
pc : [<c024b788>] lr : [<c60e16b8>] psr: 60000013
sp : c5cb3ca8 ip : 00000002 fp : c5cb3cc4
r10: c5cb3dd4 r9 : c5cb3d24 r8 : 00000000
r7 : c21cf098 r6 : c21cf310 r5 : 00000000 r4 : 00000000
r3 : 60000093 r2 : c6017000 r1 : 60000013 r0 : 00000004
Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc)
r7:c21cf098 r6:00000000 r5:00000003 r4:c03d8998 [<c013cfa0>]
(handle_level_irq+0x0/0xfc) from [<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3c60 to 0xc5cb3ca8)
3c60: 00000004 60000013 c6017000 60000093 00000000 00000000 c21cf310
c21cf098
3c80: 00000000 c5cb3d24 c5cb3dd4 c5cb3cc4 00000002 c5cb3ca8 c60e16b8
c024b788
3ca0: 60000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c024b6b8>] (xfs_trans_dup+0x0/0xf4) from [<c0236f44>]
(xfs_itruncate_finish+0x28c/0x368)
r7:00000000 r6:00000000 r5:c5984060 r4:c21cf310 [<c0236cb8>]
(xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_bunmapi+0xbfc/0xf38
LR is at 0x2
pc : [<c0215ec4>] lr : [<00000002>] psr: 60000013
sp : c5cb3bc8 ip : c5cb3bc8 fp : c5cb3cc4
r10: 00000000 r9 : c59840b0 r8 : 00000000
r7 : 00000bee r6 : 00000000 r5 : 00000000 r4 : 00000002
r3 : 00000000 r2 : 00000000 r1 : 00053566 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc) r7:00000bee r6:00000000
r5:00000003 r4:c03d8998 [<c013cfa0>] (handle_level_irq+0x0/0xfc) from
[<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3b80 to 0xc5cb3bc8)
3b80: 00000000 00053566 00000000 00000000 00000002 00000000 00000000
00000bee
3ba0: 00000000 c59840b0 00000000 c5cb3cc4 c5cb3bc8 c5cb3bc8 00000002
c0215ec4
3bc0: 60000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c02152c8>] (xfs_bunmapi+0x0/0xf38) from [<c0236e9c>]
(xfs_itruncate_finish+0x1e4/0x368)
[<c0236cb8>] (xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_bmap_add_extent+0x3c4/0x4f8 LR is at
xfs_iext_insert+0x34/0x50
pc : [<c0215194>] lr : [<c0235df4>] psr: 60000013
sp : c5cb3b40 ip : 000fffff fp : c5cb3bc4
r10: c5cb3c88 r9 : c5cb3d0c r8 : c5984060
r7 : 00064f35 r6 : 00000000 r5 : 00000000 r4 : 00000000
r3 : 00000001 r2 : c5cb3b90 r1 : c5984165 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc)
r7:00064f35 r6:00000000 r5:00000003 r4:c03d8998 [<c013cfa0>]
(handle_level_irq+0x0/0xfc) from [<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3af8 to 0xc5cb3b40)
3ae0: 00000000
c5984165
3b00: c5cb3b90 00000001 00000000 00000000 00000000 00064f35 c5984060
c5cb3d0c
3b20: c5cb3c88 c5cb3bc4 000fffff c5cb3b40 c0235df4 c0215194 60000013
ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c0214dd0>] (xfs_bmap_add_extent+0x0/0x4f8) from [<c0215ac4>]
(xfs_bunmapi+0x7fc/0xf38) [<c02152c8>] (xfs_bunmapi+0x0/0xf38) from
[<c0236e9c>] (xfs_itruncate_finish+0x1e4/0x368)
[<c0236cb8>] (xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_trans_unreserve_and_mod_sb+0x8/0x2a8
LR is at _xfs_trans_commit+0x6c/0x354
pc : [<c024b1cc>] lr : [<c024c5dc>] psr: 20000013
sp : c5cb3bb0 ip : c5cb3bc0 fp : c5cb3cc4
r10: c6017000 r9 : c5cb3d24 r8 : 00000000
r7 : 00000000 r6 : 00000010 r5 : c21cf098 r4 : 00000000
r3 : 00000000 r2 : 00000005 r1 : 00000004 r0 : c21cf098
Flags: nzCv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc) r7:00000000 r6:00000000
r5:00000003 r4:c03d8998 [<c013cfa0>] (handle_level_irq+0x0/0xfc) from
[<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3b68 to 0xc5cb3bb0)
3b60: c21cf098 00000004 00000005 00000000 00000000
c21cf098
3b80: 00000010 00000000 00000000 c5cb3d24 c6017000 c5cb3cc4 c5cb3bc0
c5cb3bb0
3ba0: c024c5dc c024b1cc 20000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c024c570>] (_xfs_trans_commit+0x0/0x354) from [<c0236f5c>]
(xfs_itruncate_finish+0x2a4/0x368)
[<c0236cb8>] (xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at kmem_zone_zalloc+0x14/0x40
LR is at kmem_zone_alloc+0x6c/0xc0
pc : [<c0258104>] lr : [<c025809c>] psr: a0000013
sp : c5cb3c90 ip : c09b74a0 fp : c5cb3ca4
r10: c5cb3dd4 r9 : c5cb3d24 r8 : 00000000
r7 : 00000000 r6 : c21cf098 r5 : c5984060 r4 : c7c3bbc0
r3 : 00000004 r2 : 00000001 r1 : c09b74b0 r0 : c21cf310
Flags: NzCv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc) r7:00000000 r6:00000000
r5:00000003 r4:c03d8998 [<c013cfa0>] (handle_level_irq+0x0/0xfc) from
[<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3c48 to 0xc5cb3c90)
3c40: c21cf310 c09b74b0 00000001 00000004 c7c3bbc0
c5984060
3c60: c21cf098 00000000 00000000 c5cb3d24 c5cb3dd4 c5cb3ca4 c09b74a0
c5cb3c90
3c80: c025809c c0258104 a0000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c02580f0>] (kmem_zone_zalloc+0x0/0x40) from [<c024b6d8>]
(xfs_trans_dup+0x20/0xf4) r5:c5984060 r4:c21cf098 [<c024b6b8>]
(xfs_trans_dup+0x0/0xf4) from [<c0236f44>]
(xfs_itruncate_finish+0x28c/0x368)
r7:00000000 r6:00000000 r5:c5984060 r4:c21cf098 [<c0236cb8>]
(xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Show Regs
Pid: 1208, comm: nfsd
CPU: 0 Not tainted (2.6.22.7 #7)
PC is at xfs_bunmapi+0x330/0xf38
LR is at __init_begin+0x3fff8000/0x30
pc : [<c02155f8>] lr : [<00000000>] psr: 80000013
sp : c5cb3bc8 ip : c5cb3c50 fp : c5cb3cc4
r10: 00000000 r9 : 00000000 r8 : 00000000
r7 : 00000bff r6 : 000fffff r5 : 00000000 r4 : ffffffff
r3 : 000fffff r2 : fffe0c00 r1 : 00000000 r0 : 00000bef
Flags: Nzcv IRQs on FIQs on Mode SVC_32 Segment user
Control: a005317f Table: 07b38000 DAC: 00000015 [<c00f1b3c>]
(show_regs+0x0/0x50) from [<c02c8278>] (sysrq_handle_showregs+0x20/0x28)
r4:c03e5654
[<c02c8258>] (sysrq_handle_showregs+0x0/0x28) from [<c02c8110>]
(__handle_sysrq+0xa4/0x148) [<c02c806c>] (__handle_sysrq+0x0/0x148) from
[<c02c841c>] (handle_sysrq+0x34/0x40) [<c02c83e8>]
(handle_sysrq+0x0/0x40) from [<c02ccd40>] (receive_chars+0x17c/0x2c4)
[<c02ccbc4>] (receive_chars+0x0/0x2c4) from [<c02cdec8>]
(serial8250_interrupt+0x74/0x13c) [<c02cde54>]
(serial8250_interrupt+0x0/0x13c) from [<c013b804>]
(handle_IRQ_event+0x44/0x84) [<c013b7c0>] (handle_IRQ_event+0x0/0x84)
from [<c013d080>] (handle_level_irq+0xe0/0xfc) r7:00000bff r6:00000000
r5:00000003 r4:c03d8998 [<c013cfa0>] (handle_level_irq+0x0/0xfc) from
[<c0021048>] (asm_do_IRQ+0x48/0x64)
r5:c03d8998 r4:00000003
[<c0021000>] (asm_do_IRQ+0x0/0x64) from [<c003bef0>]
(__irq_svc+0x30/0x100) Exception stack(0xc5cb3b80 to 0xc5cb3bc8)
3b80: 00000bef 00000000 fffe0c00 000fffff ffffffff 00000000 000fffff
00000bff
3ba0: 00000000 00000000 00000000 c5cb3cc4 c5cb3c50 c5cb3bc8 00000000
c02155f8
3bc0: 80000013 ffffffff
r6:00000002 r5:f1020000 r4:ffffffff
[<c02152c8>] (xfs_bunmapi+0x0/0xf38) from [<c0236e9c>]
(xfs_itruncate_finish+0x1e4/0x368)
[<c0236cb8>] (xfs_itruncate_finish+0x0/0x368) from [<c025392c>]
(xfs_setattr+0x8b0/0xde4) [<c025307c>] (xfs_setattr+0x0/0xde4) from
[<c025ffd8>] (xfs_vn_setattr+0x16c/0x18c) [<c025fe6c>]
(xfs_vn_setattr+0x0/0x18c) from [<c016b5bc>] (notify_change+0x124/0x244)
r7:c5b26758 r6:00000068 r5:c5985078 r4:c7d9b8f0 [<c016b498>]
(notify_change+0x0/0x244) from [<c01c9180>] (nfsd_setattr+0x368/0x50c)
[<c01c8e18>] (nfsd_setattr+0x0/0x50c) from [<c01cfdc4>]
(nfsd3_proc_setattr+0xa0/0xc4) [<c01cfd24>]
(nfsd3_proc_setattr+0x0/0xc4) from [<c01c452c>]
(nfsd_dispatch+0xd8/0x1e0) r7:c2b3a000 r6:c03db9a4 r5:00000018
r4:c62ad000 [<c01c4454>] (nfsd_dispatch+0x0/0x1e0) from [<c03b2ecc>]
(svc_process+0x448/0x7e8)
r8:c03db944 r7:00000014 r6:c62ad000 r5:c2b3a000 r4:c03db9a4
[<c03b2a84>] (svc_process+0x0/0x7e8) from [<c01c4ba4>]
(nfsd+0x17c/0x2d4) [<c01c4a28>] (nfsd+0x0/0x2d4) from [<c011dee4>]
(do_exit+0x0/0x7c4) SysRq : Resetting Reseting !!
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