From: Andrew Morton <akpm@digeo.com>
To: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Oops on 2.5.40, flush_tlb_mm
Date: Wed, 02 Oct 2002 18:42:30 -0700 [thread overview]
Message-ID: <3D9BA086.76B60194@digeo.com> (raw)
In-Reply-To: Pine.LNX.4.44.0210021957140.14293-100000@montezuma.mastecende.com
Zwane Mwaikambo wrote:
>
> Hi,
> Please keep my CC on any replies (i'm currently experiencing
> DNS problems and hence do not get lkml)
>
> Dorking around in mozilla did this, the machine had completely locked up
> so this was from the serial;
>
> Unable to handle kernel paging request at virtual address 5a5a5ad6
> printing eip:
> c0115f2f
> *pde = 00000000
> Oops: 0000
>
> CPU: 0
> EIP: 0060:[<c0115f2f>] Not tainted
> EFLAGS: 00010202
> EIP is at flush_tlb_mm+0x1f/0x90
> eax: c1ce01a0 ebx: 5a5a5a5a ecx: 00000000 edx: fffffffe
> esi: 00400000 edi: c759d418 ebp: 00100000 esp: c2749f04
> ds: 0068 es: 0068 ss: 0068
> Process mozilla-bin (pid: 1396, threadinfo=c2748000 task=c1ce01a0)
> Stack: c759d418 c01418ab 5a5a5a5a c759d418 c142d810 c0141a1a c142d810 c195263c
> c012c577 00000001 00000000 c1ce01a0 41500000 00100073 00000002 c195263c
> c0141c62 c195263c 41800000 41500000 00000025 00000025 c2fda834 00000073
> Call Trace:
> [<c01418ab>]change_protection+0x1bb/0x210
> [<c0141a1a>]mprotect_attempt_merge+0x11a/0x1d0
> [<c012c577>]update_process_times+0x27/0x30
> [<c0141c62>]mprotect_fixup+0x192/0x1b0
> [<c0141de7>]sys_mprotect+0x167/0x2f0
> [<c010bd67>]do_IRQ+0x1e7/0x200
> [<c0109477>]syscall_call+0x7/0xb
You need Hugh's patch. Was sent to Linus yesterday...
Patch from Hugh Dickins
Our earlier fix for mprotect_fixup was broken - passing an
already-freed VMA to change_protection().
mm/mprotect.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletion(-)
--- 2.5.40/mm/mprotect.c~hugh-mprotect-fix Tue Oct 1 23:43:14 2002
+++ 2.5.40-akpm/mm/mprotect.c Tue Oct 1 23:43:14 2002
@@ -186,8 +186,10 @@ mprotect_fixup(struct vm_area_struct *vm
/*
* Try to merge with the previous vma.
*/
- if (mprotect_attempt_merge(vma, *pprev, end, newflags))
+ if (mprotect_attempt_merge(vma, *pprev, end, newflags)) {
+ vma = *pprev;
goto success;
+ }
} else {
error = split_vma(mm, vma, start, 1);
if (error)
.
next prev parent reply other threads:[~2002-10-03 1:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-03 0:12 Oops on 2.5.40, flush_tlb_mm Zwane Mwaikambo
2002-10-03 1:42 ` Andrew Morton [this message]
2002-10-03 0:58 ` Zwane Mwaikambo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3D9BA086.76B60194@digeo.com \
--to=akpm@digeo.com \
--cc=linux-kernel@vger.kernel.org \
--cc=zwane@linuxpower.ca \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.