I'm currently running 2.6.9-6.28 RHEL4 and I am
seeing this random panic. I can't reproduce it on
demand but it occurs from time to time when running
some of my product tests:
4>------------[ cut here ]------------
<1>kernel BUG at fs/sysfs/dir.c:20!
<1>invalid operand: 0000 [#1]
<4>SMP
<4>Modules linked in: nfs(U) lockd(U) md5(U) ipv6(U)
parport_pc(U) lp(U) parport(U)
autofs4(U) i2c_dev(U) i2c_core(U) sunrpc(U)
ipt_REJECT(U) ipt_state(U)
ip_conntrack(U) iptable_filter(U) ip_tables(U)
dm_mod(U) button(U) battery(U)
ac(U) ohci_hcd(U) tg3(U) e100(U) mii(U) floppy(U)
sg(U) ext3(U) jbd(U)
qla2200(U) qla2xxx(U) scsi_transport_fc(U) aic7xxx(U)
sd_mod(U) scsi_mod(U)
<4>CPU: 0
<4>EIP: 0060:[<c018d928>] Tainted: PF VLI
<4>EFLAGS: 00010206 (2.6.9-5.ELvsmp)
<4>EIP is at sysfs_d_iput+0x14/0x65
<4>eax: ea87bb94 ebx: f3800438 ecx: f3800400
edx: c03def80
<4>esi: f55c1bc0 edi: ea87bb9c ebp: f7dc9eb8
esp: f7dc9eb0
<4>ds: 007b es: 007b ss: 0068
<4>Process kswapd0 (pid: 63, threadinfo=f7dc8000
task=f7dc5330)
<4>Stack: f3800438 ea87bb94 f7dc9ed4 c016e04b ea87bb94
f3800438 00000080
c1810880
[0]more>
<4> 054e354e f7dc9ee0 c016e3f5 0000007f f7dc9f1c
c0148066 00000080
000000d0
<4> 00570300 00006664 00570300 00000000 00000000
0000048d 00000000
f7ffe560
<4>Call Trace:
<4> [<c0106d9b>] show_stack+0x74/0x7c
<4> [<c0106ead>] show_registers+0xf2/0x15b
<4> [<c010705e>] die+0xd8/0x17d
<4> [<c010741e>] do_invalid_op+0xd6/0xe0
<4> [<c02e30ef>] error_code+0x2f/0x38
<4> [<c016e04b>] prune_dcache+0x140/0x197
<4> [<c016e3f5>] shrink_dcache_memory+0x19/0x32
<4> [<c0148066>] shrink_slab+0xf2/0x160
<4> [<c014929e>] balance_pgdat+0x1bf/0x2d9
<4> [<c0149488>] kswapd+0xd0/0xd4
<4> [<c010521d>] kernel_thread_helper+0x5/0xb
<4>Code: e9 94 fe ff ff e8 19 26 15 00 e9 01 ff ff ff
e8 43 26 15 00 eb 93 90
55 89 e5 8b 45 08 56 53 8b 70 54 85 f6 74 47 39 46 20
74 08 <0f> 0b 14 00 7a 1f
30 c0 c7 46 20 00 00 00 00 f0 ff 0e 0f 94 c0
<4>
[0]kdb>
[0]kdb> bt
Stack traceback for pid 63
0xf7dc5330 63 1 1 0 R 0xf7dc5580
*kswapd0
EBP EIP Function (args)
0xf7dc9eb8 0xc018d928 sysfs_d_iput+0x14 (0xf7dc9e7c,
0x0, 0xf3800438,
0xf3800400, 0xc03def80)
0xc02e30ef error_code+0x2f
Interrupt registers:
eax = 0xea87bb9c ebx = 0xf7dc9e7c ecx = 0x00000000 edx
= 0xf3800438
esi = 0xf3800400 edi = 0xc03def80 esp = 0x00000060 eip
= 0x0000007b
ebp = 0xf55c1bc0 xss = 0x00010206 xcs = 0xffffffff
eflags = 0xc018d928
xds = 0xf7dc9eb8 xes = 0xea87bb94 origeax = 0xc017007b
®s = 0xf7dc9e74
Interrupt from user space, end of kernel trace
[0]kdb>
Has anyone seen this?
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