* segmentation fault of modpost
@ 2012-02-22 7:17 Hitoshi Mitake
2012-02-23 0:13 ` H. Peter Anvin
0 siblings, 1 reply; 2+ messages in thread
From: Hitoshi Mitake @ 2012-02-22 7:17 UTC (permalink / raw)
To: Rusty Russell, Ingo Molnar; +Cc: LKML
Hi,
I tried to build tip-tree with allmodconfig and ARCH=i386 on x86_64 machine.
And modpost caused segmentation fault like this:
modpost[23652]: segfault at 2b53bece3000 ip 00000000004030bb sp
00007ffffad8d260 error 4 in modpost[400000+d000]
# from dmesg
The commit of -tip tree is 64256eb8e9f8cd53100ee6142968df336c54eb32.
Is this problem already reported or solved?
If not, I'd like to solve this because I need to build all{mod,yes}config
kernel for testing readq/writeq of x86.
Thanks,
--
Hitoshi Mitake
h.mitake@gmail.com
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: segmentation fault of modpost
2012-02-22 7:17 segmentation fault of modpost Hitoshi Mitake
@ 2012-02-23 0:13 ` H. Peter Anvin
0 siblings, 0 replies; 2+ messages in thread
From: H. Peter Anvin @ 2012-02-23 0:13 UTC (permalink / raw)
To: Hitoshi Mitake; +Cc: Rusty Russell, Ingo Molnar, LKML
On 02/21/2012 11:17 PM, Hitoshi Mitake wrote:
> Hi,
>
> I tried to build tip-tree with allmodconfig and ARCH=i386 on x86_64 machine.
> And modpost caused segmentation fault like this:
> modpost[23652]: segfault at 2b53bece3000 ip 00000000004030bb sp
> 00007ffffad8d260 error 4 in modpost[400000+d000]
> # from dmesg
>
> The commit of -tip tree is 64256eb8e9f8cd53100ee6142968df336c54eb32.
>
> Is this problem already reported or solved?
> If not, I'd like to solve this because I need to build all{mod,yes}config
> kernel for testing readq/writeq of x86.
>
I cannot reproduce this on a Fedora 15 development system. I have to
turn off two modules:
CONFIG_SCx200HR_TIMER=n
CONFIG_ANDROID_BINDER_IPC=n
... but modpost runs just fine. It would be good if you could compile
modpost with -g and see where in the code the failure happens.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
^ permalink raw reply [flat|nested] 2+ messages in thread
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