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SubjectRe: [bisected] 2.6.29-rc1 Firefox crashing on page load
Justin Madru wrote:
> Hiroshi Shimamoto wrote:
>> Justin Madru wrote:
>>> Ok, finally bisected the bug, but the commit isn't related to networking!
>>> I did: git revert 4217458dafaa57d8e26a46f5d05ab8c53cf64191
>>> on current git and that fixed the bug.
>>>
>>> By the way, how do I undo my git revert, so I'm back to a pristine tree?
>>> I want to drop my changes - the revert.
>>> Also how do I find the commit that merged/pulled in this commit?
>>>
>>> commit 4217458dafaa57d8e26a46f5d05ab8c53cf64191
>>> Author: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
>>> Date: Fri Dec 5 17:17:09 2008 -0800
>>>
>>> x86: signal: change type of paramter for sys_rt_sigreturn()
>>>
>>> Impact: cleanup on 32-bit
>>>
>>> Peter pointed this parameter can be changed.
>>>
>>> Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
>>> Signed-off-by: Ingo Molnar <mingo@elte.hu>
>> Hi,
>> thanks for reporting.
>>
>> I'm not sure why this commit affects.
>> Can you check vmlinux? size, objdump, etc.
>> On my environment, the generated code looks same.
>>
>> Thanks,
>> Hiroshi
>>
> I tried to do an objdump but it gave an error. How am I suppose to do an
> objdump?
>
> $ objdump -x /boot/vmlinuz-2.6.29-rc2-git
> objdump: /boot/vmlinuz-2.6.29-rc2-git: File format not recognized
> $ readelf -a /boot/vmlinuz-2.6.29-rc2-git
> readelf: Error: Unable to seek to 0xc031f2eb for section headers
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the start
> $ ls -la /boot/vmlinuz-2.6.29-rc2-git
> -rw-r--r-- 1 root root 2286480 2009-01-19 18:44 /boot/vmlinuz-2.6.29-rc2-git

not vmlinuz, vmlinux.
vmlinuz is a compressed kernel, it is not ELF file.
Usually vmlinux is generated in top of source directory.
I can see disassembled image with objdump -d vmlinux.

Thanks,
Hiroshi


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