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Posted to users@httpd.apache.org by Thomas Hug <to...@nine.ch> on 2002/01/10 12:54:40 UTC
kernel panic
hello
this morning i had a kernel panic on a linux 2.4.16 machine. the syslog
reportet the following message before the kernel died:
kernel: Unable to handle kernel paging request at virtual address
00040594
kernel: printing eip:
kernel: c0123ab7
kernel: *pde = 00000000
kernel: Oops: 0002
kernel: CPU: 0
kernel: EIP: 0010:[__free_pages_ok+391/496] Not tainted
kernel: EFLAGS: 00010083
kernel: eax: c02424b8 ebx: c122eac0 ecx: 00001eea edx: 000401b7
kernel: esi: 00007baa edi: c122ea80 ebp: c024244c esp: c6981ef8
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process libhttpd.ep (pid: 8138, stackpage=c6981000)
kernel: Stack: c122ea80 00013000 ca6e5764 409c6000 c0242428 c1040000
00000212 fffffffe
kernel: 00001eea c0124049 c122ea80 c01243f5 c122ea80 c011a88c
c122ea80 00015000
kernel: c011ac51 08baa067 cb7803e0 ca52d5a0 405c6000 00015000
c06b5408 c06b5408
kernel: Call Trace: [page_cache_release+49/52]
[free_page_and_swap_cache+49/52] [__free_pte+60/68]
[zap_page_range+369/540] [exit_mmap+
181/276]
kernel: [mmput+57/88] [do_exit+126/460] [sys_exit+15/16]
[system_call+51/64]
kernel:
kernel: Code: 0f bb 0a 19 c0 85 c0 0f 85 3d ff ff ff 8b 54 24 14 c1 e6
06
kernel: <1>Unable to handle kernel paging request at virtual address
00040483
kernel: printing eip:
my question is: how could apache 1.3.22 crash a kernel? is this a brute
force or a bug?
[...]
kernel: Process libhttpd.ep (pid: 8138, stackpage=c6981000)
[...]
thanks for your help
tom
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RE: kernel panic
Posted by Joshua Slive <jo...@slive.ca>.
> From: Thomas Hug [mailto:tom@nine.ch]
> > A user-mode program shouldn't be able to do anything that will crash a
> > working kernel. A kernel panic almost certainly means a kernel bug.
>
> but why is there a line about libhttp in the kernel errormessage?
>
> kernel: Process libhttpd.ep (pid: 8138, stackpage=c6981000)
It could mean that httpd was the running process when the kernel crashed,
but that does not mean that the bug is in httpd.
Joshua.
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RE: kernel panic
Posted by Thomas Hug <to...@nine.ch>.
On Thu, 10 Jan 2002 10:26, Joshua Slive wrote:
> > this morning i had a kernel panic on a linux 2.4.16 machine. the syslog
> > reportet the following message before the kernel died:
>
> > my question is: how could apache 1.3.22 crash a kernel? is this a brute
> > force or a bug?
>
> A user-mode program shouldn't be able to do anything that will crash a
> working kernel. A kernel panic almost certainly means a kernel bug.
but why is there a line about libhttp in the kernel errormessage?
kernel: Process libhttpd.ep (pid: 8138, stackpage=c6981000)
tom
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RE: kernel panic
Posted by Joshua Slive <jo...@slive.ca>.
> From: Thomas Hug [mailto:tom@nine.ch]
>
> this morning i had a kernel panic on a linux 2.4.16 machine. the syslog
> reportet the following message before the kernel died:
> my question is: how could apache 1.3.22 crash a kernel? is this a brute
> force or a bug?
A user-mode program shouldn't be able to do anything that will crash a
working kernel. A kernel panic almost certainly means a kernel bug.
Joshua.
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