Re: 2.6.9-rc1-mm4

Nathan Lynch
2004-09-08T20:14:48Z

On Tue, 2004-09-07 at 04:08, Andrew Morton wrote:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc1/2.6.9-rc1-mm4/

When running a moderate load and running top, I get:

kernel BUG in next_thread at kernel/exit.c:852!
cpu 0x2: Vector: 700 (Program Check) at [c00000027bcf3770]
pc: c000000000058454: .next_thread+0x14/0x48
lr: c0000000000f1a84: .do_task_stat+0x238/0x53c
sp: c00000027bcf39f0
msr: 8000000000029032
current = 0xc000000270033380
paca = 0xc000000000474000
pid = 6627, comm = top
enter ? for help
2:mon> t
[link register ] c0000000000f1a84 .do_task_stat+0x238/0x53c
[c00000027bcf39f0] c0000000000f1998 .do_task_stat+0x14c/0x53c
(unreliable)
[c00000027bcf3c50] c0000000000edc30 .proc_info_read+0x94/0x100
[c00000027bcf3cf0] c0000000000aa780 .vfs_read+0x10c/0x164
[c00000027bcf3d90] c0000000000aaa94 .sys_read+0x58/0xa4
[c00000027bcf3e30] c000000000011e00 syscall_exit+0x0/0x18
--- Exception: c01 (System Call) at 000000800021c944
SP (1ffffffeda0) is in userspace

> +show-aggregate-per-process-counters-in-proc-pid-stat.patch
>
> /proc/pid/stat enhancements

This seems the likely suspect to me, but I haven't the time at the
moment to try backing it out.

Nathan