Hi,
sorry if this is duplicate, but LK traffic somehow grew over my capabilities.
I just typed 'netstat' after 3 hours of uptime, and in reward I received
few connections followed by kernel complaining about invalid kfree.
Oopses are triggered by reading /proc/net/raw, as 'cat /proc/net/raw' reveals.
'PF' tainting is caused by VMware's vmmon/vmnet, but I do not think that it is
extremenly relevant to this oops, as nothing from VMware creates raw sockets.
Thanks,
Petr Vandrovec
vana:~# netstat
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 vana:32901 mailgw.cvut.cz:ssh ESTABLISHED
tcp 0 0 vana:32796 petr.vc.cvut.cz:ssh ESTABLISHED
tcp 0 0 vana:32773 olc.cvut.cz:ssh ESTABLISHED
tcp 0 0 vana:32774 buk.vc.cvut.cz:ssh ESTABLISHED
tcp 0 0 vana:32772 cdrom.vc.cvut.cz:524 ESTABLISHED
tcp 0 0 vana:32769 cdrom.vc.cvut.cz:524 ESTABLISHED
kfree_debugcheck: out of range ptr 100h.
------------[ cut here ]------------
kernel BUG at mm/slab.c:1610!
invalid operand: 0000 [#1]
CPU: 0
EIP: 0060:[<c014d1f8>] Tainted: PF
EFLAGS: 00010086
EIP is at kfree+0x2c9/0x2d6
eax: 0000002c ebx: c9626104 ecx: c047ef54 edx: c03c0f58
esi: d2214738 edi: 00040000 ebp: c8ea47d8 esp: ce1a1f1c
ds: 007b es: 007b ss: 0068
Process netstat (pid: 6890, threadinfo=ce1a0000 task=da576100)
Stack: c0381780 00000100 d2214758 c0335a09 c9626104 00000003 00000206 c9626104
d2214738 c2307b8c c8ea47d8 c0191833 00000100 d2214738 d2214738 dffb6224
c2307b8c c0169cbe c2307b8c d2214738 d2214738 da644504 00000000 ce1a0000
Call Trace:
[<c0335a09>] raw_seq_start+0x39/0x3d
[<c0191833>] seq_release_private+0x25/0x48
[<c0169cbe>] __fput+0xd9/0xde
[<c01681e6>] filp_close+0x4d/0x79
[<c01682fd>] sys_close+0xeb/0x1ed
[<c0168cf2>] sys_read+0x42/0x63
[<c0109aaf>] syscall_call+0x7/0xb
Code: 0f 0b 4a 06 af 0b 38 c0 e9 5c fd ff ff 53 31 d2 b8 08 00 00
Segmentation fault
vana:~# cat /proc/net/raw
sl local_address rem_address st tx_queue rx_queue tr tm->when retrnsmt uid timeout inode
1: 00000000:0001 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 2121 2 dc9f44b4
1: 00000000:0001 00000000:0000 07 00000000:00000000 00:00000000 00000000 0 0 1325 2 dfcb0084
<3>kfree_debugcheck: out of range ptr 100h.
------------[ cut here ]------------
kernel BUG at mm/slab.c:1610!
invalid operand: 0000 [#3]
CPU: 0
EIP: 0060:[<c014d1f8>] Tainted: PF
EFLAGS: 00010086
EIP is at kfree+0x2c9/0x2d6
eax: 0000002c ebx: d9756334 ecx: c047eadc edx: c03c0f58
esi: d8e1adec edi: 00040000 ebp: c8ea47d8 esp: c7305f1c
ds: 007b es: 007b ss: 0068
Process cat (pid: 6913, threadinfo=c7304000 task=db8b8400)
Stack: c0381780 00000100 d8e1ae0c c0335a09 d9756334 00000003 00000206 d9756334
d8e1adec c2307b8c c8ea47d8 c0191833 00000100 d8e1adec d8e1adec dffb6224
c2307b8c c0169cbe c2307b8c d8e1adec d8e1adec db93e184 00000000 c7304000
Call Trace:
[<c0335a09>] raw_seq_start+0x39/0x3d
[<c0191833>] seq_release_private+0x25/0x48
[<c0169cbe>] __fput+0xd9/0xde
[<c01681e6>] filp_close+0x4d/0x79
[<c01682fd>] sys_close+0xeb/0x1ed
[<c0168cf2>] sys_read+0x42/0x63
[<c0109aaf>] syscall_call+0x7/0xb
Code: 0f 0b 4a 06 af 0b 38 c0 e9 5c fd ff ff 53 31 d2 b8 08 00 00
Segmentation fault
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This archive was generated by hypermail 2b29 : Mon Jul 07 2003 - 22:00:29 EST