linux-kernel - Re: [Bug 15076] System panic under load with clockevents_program

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]

Date:	Tue, 26 Jan 2010 15:07:45 +0100
From:	okias <d.okias@...il.com>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	bugzilla-daemon@...zilla.kernel.org, x86@...nel.org
Subject: Re: [Bug 15076] System panic under load with clockevents_program_event

Lastest git without HIGHMEM look good. If no problems occur, then I
try use kernel with HIGHMEM and see what change...

2010/1/25, okias <d.okias@...il.com>:
> Okey, I try without highmem soon.
>
> 2010/1/25, Thomas Gleixner <tglx@...utronix.de>:
>> Switched to email. Please reply to all instead of using the bugzilla
>> interface.
>>
>>> --- Comment #4 from okias <d.okias@...il.com>  2010-01-22 10:17:25 ---
>>> and it's regression. Now I work on 2.6.32.3 and no problem.
>>
>> That's a really weird one. The system is 50 min up and running and out
>> of the blue it crashes in clockevents_program_event(). This function
>> has been called a couple of thousand times before that point.
>>
>> The only way to crash there is when *dev is pointing into nirwana. dev
>> comes from
>>
>> int tick_program_event(ktime_t expires, int force)
>> {
>>         struct clock_event_device *dev =
>> __get_cpu_var(tick_cpu_device).evtdev;
>>
>> according to the callchain. At this point nothing fiddles with
>> tick_cpu_device.evtdev, so I suspect some really nasty memory
>> corruption going on.
>>
>> okias, can you please disable highmem support and verify whether the
>> problem persists ?
>>
>> Thanks,
>>
>> 	tglx
>>
>
>
> --
> Jabber/XMPP: okias@...eek.info
> SIP VoIP: sip:17474537254@...xy01.sipphone.com
>


-- 
Jabber/XMPP: okias@...eek.info
SIP VoIP: sip:17474537254@...xy01.sipphone.com
--
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/