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Hi All, I’m using FC3 with 2.6.9 SMP Kernel. The root file
system is EXT3 and the volume is a XFS volume. While doing IO over a NFS v3
share, with ‘watch df’ running in parallel,
kernel panic at SLAB memory is noticed. When searching Internet, I also noticed
that similar KP are reported at free_block function;
but could not find fix for this. For me, this issue appears intermittently. It happens when doing
IO over 60 NFS shares. From the KP message it appears to be an issue in Linux SLAB
memory module. Can anyone suggest a solution for this issue? Is this issue already addressed in later
kernel like 2.6.12? ------KP start------ kernel: Unable to
handle kernel paging request at virtual address 49bec98e kernel: printing eip: kernel: 02140b7c kernel: *pde = 00000000 kernel: Oops: 0002
[#1] kernel: SMP kernel: Modules
linked in: xfs i2c_i801 bccfg(U)
dvm(U) sg st osst nfsd
exportfs lockd md5 ipv6
autofs4 i2c_dev i2c_core sunrpc iptable_filter
ip_tables dm_mod button
battery ac sr_mod usb_storage
uhci_hcd ehci_hcd e1000
floppy ext3 jbd bcraid
aic79xx sd_mod scsi_mod kernel: CPU: 3 kernel: EIP: 0060:[<02140b7c>] Tainted: PF VLI kernel: EFLAGS:
00010087 (2.6.9-1.667smp) kernel: EIP is at
free_block+0x62/0xd6 kernel: eax: 00000029
ebx: 41db3000 ecx:
03f1ccbb edx:
00000000 kernel: esi: 41f6f280
edi: 0000003c ebp:
00000011 esp:
3e384e10 kernel: ds: 007b es: 007b ss: 0068 kernel: Process atd (pid: 2831, threadinfo=3e384000 task=3e622930) kernel: Stack:
41e0d010 39f19000 09fa4540 41e0d010 0000003c 02140c5e 41e0d000 41f6f280 kernel: 41e0d000
09fa4540 41e0d010 00000202 0214102d 09fa4548 00000000 3f1bb808 kernel:
2674d1e0 42d02886 2674d1e0 41f47e00 3d5b2320 3d11ce8c 42d0291e 1a7b8880 kernel: Call
Trace: kernel: [<02140c5e>]
cache_flusharray+0x6e/0x9c kernel: [<0214102d>] kfree+0x43/0x51 kernel: [<42d02886>]
free_rb_tree_fname+0x31/0x6c [ext3] kernel: [<42d0291e>]
ext3_htree_free_dir_info+0x8/0x10 [ext3] kernel: [<42d02cd3>]
ext3_release_dir+0xf/0x14 [ext3] kernel: [<021549ca>] __fput+0x55/0x100 kernel: [<021536f4>] filp_close+0x59/0x5f kernel: [<02121350>]
put_files_struct+0x57/0xc0 kernel: [<02121f4e>] do_exit+0x227/0x3bd kernel: [<021221d2>] sys_exit_group+0x0/0xd kernel: [<021294f8>]
get_signal_to_deliver+0x341/0x369 kernel: [<02105e6c>] do_signal+0x55/0xd5 kernel: [<0216396f>] filldir64+0x0/0x122 kernel: [<0214f08a>] rw_vm+0x27e/0x28c kernel: [<0214f3a5>]
put_user_size+0x29/0x2d kernel: [<02163b30>]
sys_getdents64+0x9f/0xa9 kernel: [<02105f14>]
do_notify_resume+0x28/0x38 kernel: Code: 1c 8b 53 04 8b 03 89
50 04 89 02 31 d2 2b 4b 0c c7 03 00 01 10 00 c7 43 04 00 02 20 00 89 c8 f7 b6
b0 00 00 00 89 c1 0f b7 43
14 <66> 89 44 4b 18 8b 43 10 66 89 4b 14 48 85 c0 89 43 10 75 41 8b ------ KP End ------ Thanks in Advance Srikumar |
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