Messages in this thread | | | From | Andrey Borzenkov <> | Subject | Re: 2.5.74 - BUG in kfree during sys_close from netstat | Date | Tue, 8 Jul 2003 22:06:23 +0400 |
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On Tuesday 08 July 2003 21:59, Andrey Borzenkov wrote: > Just tried and when connection is done while kmail is not started it works. > I am not sure what kmail does - except that it actually is the only > application to actively use IP here most of the time. >
forget it - with or without kmail, with or without connection established netstat bugs out every time:
pts/1}% ifconfig -a lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:177 errors:0 dropped:0 overruns:0 frame:0 TX packets:177 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:12238 (11.9 Kb) TX bytes:12238 (11.9 Kb)
{pts/1}% netstat -an Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:32768 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:10000 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:6000 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:631 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN udp 0 0 0.0.0.0:514 0.0.0.0:* udp 0 0 0.0.0.0:10000 0.0.0.0:* udp 0 0 127.0.0.1:53 0.0.0.0:* udp 0 0 224.0.0.251:5353 0.0.0.0:* udp 0 0 127.0.0.1:5353 0.0.0.0:* udp 0 0 0.0.0.0:111 0.0.0.0:* udp 0 0 0.0.0.0:631 0.0.0.0:* zsh: segmentation fault netstat -an
dmesg -> ------------[ cut here ]------------ kernel BUG at mm/slab.c:1537! invalid operand: 0000 [#6] CPU: 0 EIP: 0060:[<c014c530>] Tainted: P EFLAGS: 00010002 EIP is at kfree+0x2e0/0x2f0 eax: 0000002c ebx: 00040000 ecx: cf1fe670 edx: 00000001 esi: c02b9ee0 edi: 00000100 ebp: ced77f34 esp: ced77f14 ds: 007b es: 007b ss: 0068 Process netstat (pid: 10529, threadinfo=ced76000 task=c1b100e0) Stack: ced77f28 c02752fe cacdcad0 00000001 00000206 cacdcad0 cfab5a04 c245537c ced77f4c c01881b8 00000100 cfab5a04 cfab5a04 cffdf8e4 ced77f70 c0165089 c245537c cfab5a04 c245537c c996fa98 cfab5a04 c61c2c54 00000000 ced77f98 Call Trace: [<c02752fe>] raw_seq_start+0x4e/0x60 [<c01881b8>] seq_release_private+0x18/0x32 [<c0165089>] __fput+0x129/0x130 [<c0163703>] filp_close+0xc3/0x110 [<c01637e2>] sys_close+0x92/0x120 [<c010b527>] syscall_call+0x7/0xb
Code: 0f 0b 01 06 d1 93 2b c0 e9 44 fd ff ff 8d 76 00 55 89 e5 57
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