From: Alexander Nyberg <alexn@telia.com>
To: linux-kernel@vger.kernel.org
Cc: ak@suse.de, Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.8.1-mm, programs crashing on x86_64
Date: Fri, 20 Aug 2004 22:35:11 +0200 [thread overview]
Message-ID: <1093034107.798.8.camel@boxen> (raw)
In-Reply-To: <1093023902.908.8.camel@boxen>
> This does not happen in linus -bk. I noticed it happens in
> 2.6.8-mm2 also, but not sure about earlier. I'll try some earlier
> -mm's and if noone knows what could be it I'll do a binary search.
>
> Must be quite newly introduced though...
>
> boxen:~# chroot /mnt/store/x86/ bash
> bash[911] bad frame in 32bit signal deliver frame:00000000ffffd220 rip:556605d6 rsp:ffffd500 orax:ffffffffffffffff
> bash[910] bad frame in 32bit signal deliver frame:00000000ffffd220 rip:556605d6 rsp:ffffd500 orax:ffffffffffffffff
> bash[910]: segfault at 00000000ffffd51c rip 00000000556605d6 rsp 00000000ffffd500 error 7
> bash[911]: segfault at 00000000ffffd51c rip 00000000556605d6 rsp 00000000ffffd500 error 7
>
I forgot to tell you what environment I'm in; debian in a pure 64-bit
environment. I've got a chroot at /mnt/store/x86 where I compile kernels
for x86 boxes.
.config snippet:
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_IA32_EMULATION=y
CONFIG_IA32_AOUT=y
CONFIG_COMPAT=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_UID16=y
Anyway, found the trouble-maker. Reverting below patch fixes issues.
diff -uprN linux-2.6.8-rc3-mm1/include/asm-x86_64/processor.h linux-2.6.8-rc3-mm2/include/asm-x86_64/processor.h
--- linux-2.6.8-rc3-mm1/include/asm-x86_64/processor.h 2004-08-20 21:10:01.739109232 +0200
+++ linux-2.6.8-rc3-mm2/include/asm-x86_64/processor.h 2004-08-20 21:09:52.095575272 +0200
@@ -164,9 +164,9 @@ static inline void clear_in_cr4 (unsigne
/*
- * User space process size: 512GB - 1GB (default).
+ * User space process size.
*/
-#define TASK_SIZE (0x0000007fc0000000UL)
+#define TASK_SIZE (test_thread_flag(TIF_IA32) ? 0xffffd000 : 0x0000007fc0000000UL)
/* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
prev parent reply other threads:[~2004-08-20 20:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-20 17:45 2.6.8.1-mm, programs crashing on x86_64 Alexander Nyberg
2004-08-20 20:35 ` Alexander Nyberg
2004-08-20 20:35 ` Alexander Nyberg [this message]
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=1093034107.798.8.camel@boxen \
--to=alexn@telia.com \
--cc=ak@suse.de \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
/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.