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Posted to apache-bugdb@apache.org by jrb <jr...@paisvirtual.com> on 2000/11/14 19:11:29 UTC
os-linux/6843: kernel error on proccess httpd
>Number: 6843
>Category: os-linux
>Synopsis: kernel error on proccess httpd
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: apache
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: apache
>Arrival-Date: Tue Nov 14 10:20:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: jrbe@paisvirtual.com
>Release: 1.3.11 (Unix)
>Organization:
apache
>Environment:
Red Hat Linux 6.2
Linux 2.2.14-5.0smp #1 SMP Tue Mar 7 21:01:40 EST 2000 i686 unknown
Compiler: egcs-2.91.66
Httpd Server: Apache/1.3.11 (Unix)
>Description:
The output of my syslog daemon was:
kernel: Unable to handle kernel NULL pointer dereference at virtual address 000
kernel: current->tss.cr3 = 26364000, %cr3 = 26364000
kernel: *pde = 00000000
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[tcp_v4_unhash+120/171]
kernel: EFLAGS: 00010286
kernel: eax: e2cc8f48 ebx: d8301400 ecx: 00000000 edx: d8758e60
kernel: esi: d8301400 edi: f7e9cec0 ebp: e1455f6c esp: e2467ec8
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process httpd (pid: 8573, process nr: 861, stackpage=e2467000)
kernel: Stack: d8301400 ffffff8f c6ee5980 c01747b1 d8301400 e1455f6c db5b4b3c e
kernel: e2466000 c014f34e db5b4b3c e1455f6c 00000002 00000004 4000ae60 b
kernel: bffff988 00000013 00000000 c010b508 00000012 f9d2d000 e2467f68 0
kernel: Call Trace: [inet_accept+209/242] [sys_accept+144/350] [handle_IRQ_even
[do_level_ioapic_IRQ+143/161] [do_IRQ+59/89]
[sys_rt_sigaction+127/211] [sys_rt_sigprocmask+83/434]
[sys_socketcall+162/440] [system_call+52/56]
kernel: Code: 83 79 08 00 75 24 8b 51 04 85 d2 74 09 8b 41 0c 89 42 0c 8b
i have no core dumped!
i think a system network call made by httpd process is the source of the problem or
maybe my linux box is managing too much tcp connections!
>How-To-Repeat:
i don't know
>Fix:
i think the source of the problem is the kernel TCP/IP stack, but
i don't know how to fix it. Could you give me some advise? Thanks.
>Release-Note:
>Audit-Trail:
>Unformatted:
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