linux-kernel - Re: [bisected] 2.6.29-rc1 Firefox crashing on page load

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4976246D.1040008@gawab.com>
Date:	Tue, 20 Jan 2009 11:22:21 -0800
From:	Justin Madru <jdm64@...ab.com>
To:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
CC:	"Justin P. Mattock" <justinmattock@...il.com>,
	Jesper Juhl <jj@...osbits.net>,
	lkml <linux-kernel@...r.kernel.org>,
	John Stoffel <john@...ffel.org>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [bisected] 2.6.29-rc1 Firefox crashing on page load

Hiroshi Shimamoto wrote:
> 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@...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@...jp.nec.com>
>>>> Signed-off-by: Ingo Molnar <mingo@...e.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
>
>   
Sorry, didn't know. I tried objdump -d vmlinux, but the resulting file 
is ~50MB!
Is there a smaller section you're interested in, because that would be 
hard to send.
Or am I doing it wrong again?

Justin Madru
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/