https://bugzilla.kernel.org/show_bug.cgi?id=27492
--- Comment #7 from Jochen Buchholz <bookwood@xxxxxxxxxxx> 2011-02-03 15:51:58
---
The next chrash has occured, but the gdb comand would not work:
root@ittest01:~ (master $ u=) # echo 'l *(xfs_da_do_buf+0x4c8)' | gdb
/usr/src/linux/vmlinux
GNU gdb (Gentoo 7.2 p1) 7.2
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Reading symbols from /usr/src/linux-2.6.37/vmlinux...(no debugging symbols
found)...done.
(gdb) Hangup detected on fd 0
error detected on stdin
Ok - here the next dump:
eth0: no IPv6 routers present
hrtimer: interrupt took 29976382 ns
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
vmap allocation for size 1048576 failed: use vmalloc=<size> to increase size.
xfs_buf_get: failed to map pages
BUG: unable to handle kernel NULL pointer dereference at 00000008
IP: [<f0987b72>] xfs_da_do_buf+0x4c8/0x61f [xfs]
*pde = 00000000
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:04.0/net/eth0/broadcast
Modules linked in: ipv6 nfsd tpm_tis rtc_cmos rtc_core tpm rtc_lib tpm_bios
floppy processor i6300esb button thermal_sys i2c_piix4 pcspkr i2c_core
virtio_balloon tg3 libphy e1000 fuse xfs exportfs nfs auth_rpcgss nfs_acl lockd
sunrpc jfs raid10 dm_snapshot dm_crypt dm_mirror dm_region_hash dm_log dm_mod
scsi_wait_scan sl811_hcd usbhid ohci_hcd ssb uhci_hcd usb_storage ehci_hcd
usbcore aic94xx libsas lpfc qla2xxx megaraid_sas megaraid_mbox megaraid_mm
megaraid aacraid sx8 DAC960 cciss 3w_9xxx 3w_xxxx mptsas scsi_transport_sas
mptfc scsi_transport_fc scsi_tgt mptspi mptscsih mptbase atp870u dc395x qla1280
imm parport dmx3191d sym53c8xx qlogicfas408 gdth advansys initio BusLogic
arcmsr aic7xxx aic79xx scsi_transport_spi sg pdc_adma sata_inic162x sata_mv
ata_piix ahci libahci sata_qstor sata_vsc sata_uli sata_sis sata_sx4 sata_nv
sata_via sata_svw sata_sil24 sata_sil sata_promise pata_pcmcia pcmcia
pcmcia_core
Pid: 12336, comm: tar Not tainted 2.6.37 #1 /Bochs
EIP: 0060:[<f0987b72>] EFLAGS: 00210246 CPU: 0
EIP is at xfs_da_do_buf+0x4c8/0x61f [xfs]
EAX: 00000001 EBX: ed795c00 ECX: 00000008 EDX: d6345c64
ESI: 00000000 EDI: 00000000 EBP: d6345c74 ESP: d6345c0c
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process tar (pid: 12336, ti=d6344000 task=e965a200 task.ti=d6344000)
Stack:
00203c27 00000000 00000000 ed5b58dc cdc8ca40 f09ab2c2 00000001 00000000
00000000 ffffffff ed5b58c0 d6345c44 00200292 e0f96920 ecb0e1f8 e0f96900
ecb0e180 d6345c68 f09b27ea f09aafc0 c50dc27c 00000001 00000000 d6345c9c
Call Trace:
[<f09ab2c2>] ? xfs_trans_read_buf+0x2bf/0x34b [xfs]
[<f09b27ea>] ? xfs_buf_rele+0x57/0x9a [xfs]
[<f09aafc0>] ? xfs_trans_brelse+0xd5/0xdb [xfs]
[<f0987d25>] ? xfs_da_read_buf+0x18/0x1d [xfs]
[<f0988df4>] ? xfs_da_node_lookup_int+0x4d/0x202 [xfs]
[<f0988df4>] ? xfs_da_node_lookup_int+0x4d/0x202 [xfs]
[<f098eb86>] ? xfs_dir2_node_addname+0x63/0x79e [xfs]
[<f09af6a6>] ? kmem_zone_zalloc+0x1c/0x29 [xfs]
[<f09a9817>] ? xfs_trans_add_item+0x18/0x48 [xfs]
[<f0979022>] ? xfs_bmap_last_offset+0xe4/0xfa [xfs]
[<f0989c25>] ? xfs_dir2_isleaf+0x16/0x44 [xfs]
[<f098a6b6>] ? xfs_dir_createname+0x107/0x10f [xfs]
[<f09ad8a0>] ? xfs_create+0x32b/0x508 [xfs]
[<f09b6bb6>] ? xfs_vn_mknod+0xc8/0x153 [xfs]
[<f09b6c5a>] ? xfs_vn_create+0xa/0xc [xfs]
[<c01c05dc>] ? vfs_create+0x85/0xcf
[<c01c0c83>] ? do_last+0x28a/0x50b
[<c01c2471>] ? do_filp_open+0x1a7/0x47b
[<c01aee96>] ? free_pages_and_swap_cache+0x6a/0x7d
[<c01b6b76>] ? do_sys_open+0x44/0xbf
[<c01b6c33>] ? sys_open+0x1e/0x26
[<c0102858>] ? sysenter_do_call+0x12/0x28
Code: 55 b8 8b 45 b4 eb 13 31 ff 83 7d f0 00 74 12 8b 4d 18 8d 55 f0 b8 01 00
00 00 e8 4c fa ff ff 89 c7 83 7d 14 01 0f 85 c7 00 00 00 <8b> 57 08 89 55 b4 89
d1 8b 52 08 8b 01 0f c8 86 f2 0f b7 d2 81
EIP: [<f0987b72>] xfs_da_do_buf+0x4c8/0x61f [xfs] SS:ESP 0068:d6345c0c
CR2: 0000000000000008
---[ end trace 6c4b38f1d30d44f1 ]---
EXT2-fs (vda1): warning: mounting unchecked fs, running e2fsck is recommended
The gentoo kernel 2.6.32 work since 4 weeks without any problems on my T61
Notebook (32 bit). LVM, xfs same configuration like the test host. I use XFS
since Redhat 7.3 - many years with no issue. I think the bug depend on changes
after 2.6.32. Have you an KVM environment? I can prepare a minimal gentoo test
system as an image file?
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