| 1 |
> Nothing. The logs simply stop when the machine does and are no longer written |
| 2 |
> even though the kernel is operable enough to respond to pings and initiate |
| 3 |
> TCP sessions. |
| 4 |
|
| 5 |
You could certainly encounter this too when the machine's load shoots to the |
| 6 |
roof or one of the running programs is vehemently leaking memory. |
| 7 |
When trying to log in via ssh, wait for a few minutes for the prompt |
| 8 |
or response to |
| 9 |
come up. Most of the time it takes a while for the kernel to kill the |
| 10 |
misbehaving |
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process. |
| 12 |
|
| 13 |
BTW just in case its a load issue, this patch to kernel/fork.c could help |
| 14 |
|
| 15 |
@@ -119,7 +119,7 @@ void __init fork_init(unsigned long memp |
| 16 |
* value: the thread structures can take up at most half |
| 17 |
* of memory. |
| 18 |
*/ |
| 19 |
- max_threads = mempages / (8 * THREAD_SIZE / PAGE_SIZE); |
| 20 |
+ max_threads = mempages / (16 * THREAD_SIZE / PAGE_SIZE); |
| 21 |
|
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/* |
| 23 |
* we need to allow at least 20 threads to boot a system |
| 24 |
|
| 25 |
|
| 26 |
> Linux 2.6.11-hardened-r1 #3 SMP Tue Apr 12 07:22:52 UTC 2005 i686 Intel(R) |
| 27 |
> Xeon(TM) CPU 2.40GHz GenuineIntel GNU/Linux |
| 28 |
> Portage 2.0.51.19 (hardened/x86/2.6, gcc-3.3.5-20050130, |
| 29 |
> glibc-2.3.4.20041102-r1, 2.6.11-hardened-r1 i686) |
| 30 |
> |
| 31 |
> ...... |
| 32 |
> |
| 33 |
> Linux 2.4.20-24.9smp #1 SMP Mon Dec 1 11:25:17 EST 2003 i686 i686 i386 |
| 34 |
> GNU/Linux |
| 35 |
> glibc-2.3.2-4.80.8 |
| 36 |
> Red Hat Linux release 8.0 (Psyche) |
| 37 |
> |
| 38 |
> Linux 2.6.11-hardened #3 SMP Sat Apr 23 09:04:51 UTC 2005 x86_64 AMD |
| 39 |
> Opteron(tm) Processor 250 AuthenticAMD GNU/Linux |
| 40 |
> Portage 2.0.51.19 (default-linux/amd64/2004.3, gcc-3.4.3, |
| 41 |
> glibc-2.3.4.20041102-r1, 2.6.11-hardened x86_64) |
| 42 |
> |
| 43 |
> Linux 2.6.11-hardened-r1 #3 Tue Apr 12 07:26:56 UTC 2005 i686 Pentium III |
| 44 |
> (Coppermine) GenuineIntel GNU/Linux |
| 45 |
> Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5-20050130, |
| 46 |
> glibc-2.3.4.20041102-r1, 2.6.11-hardened-r1 i686) |
| 47 |
|
| 48 |
I would have speculated this being a probable issue with one of the |
| 49 |
hardened-patches applied to the kernel but seeing redhat with linux |
| 50 |
2.4 there hmmm |
| 51 |
Are they by any chance all running the same programs/services? |
| 52 |
|
| 53 |
|
| 54 |
-- |
| 55 |
Eduardo Tongson |
| 56 |
<pornadmin.net/~tongson> |
| 57 |
|
| 58 |
-- |
| 59 |
gentoo-server@g.o mailing list |
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