Re: OOM Killer killing whole system

[Andrew Morton]

Chase Venters <chase.venters@xxxxxxxxxxxx> wrote:
>
> > Next time you reboot 2.6.15 on that machine can you please send the output
> > of `dmesg -s 1000000'?  You might have to set CONFIG_LOG_BUF_SHIFT=17 to
> > prevent it from being truncated.
> 
> Here's mine (attached).

Great, thanks.  That tells us all sorts of stuff about your setup.

For linux-scsi reference, Chase's /proc/slabinfo says:

scsi_cmd_cache    1547440 1547440    384   10    1 : tunables   54   27    8 : 
slabdata 154744 154744      0

> Curious - the -s... were you expecting the ring buffer 
> to exceed 16384?

It can sometimes be quite large.  I always say -s 1000000 to make sure
everything got there.

> I don't think my (boot time) buffer does.

It's compile-time configurable with CONFIG_LOG_BUF_SHIFT and boot-time
configurable with log_buf_len=n.
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