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Message-ID: <48D76813.9000603@bigtelecom.ru> Date: Mon, 22 Sep 2008 13:40:35 +0400 From: Badalian Vyacheslav <slavon@...telecom.ru> To: Jarek Poplawski <jarkao2@...il.com> CC: Denys Fedoryshchenko <denys@...p.net.lb>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: Machine Check Exception Re: NetDev! Please help! Thanks for answer Jarek! I post it is bugtrack - http://bugzilla.kernel.org/show_bug.cgi?id=11618 I not think that its hardware error because this problem we have in 10 servers on 2.6.26.2 kernel +) On Friday night i compile 2.6.26.5 and have 2 panic on 1 pc what have max load and 1 panic on other pc. I write to netdev list because first messages looks like: [ 4956.420298] CPU 1: Machine Check Exception: 0000000000000005 [ 4956.420298] e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang [ 4956.420300] Tx Queue <0> [ 4956.420300] TDH <81> [ 4956.420301] TDT <81> [ 4956.420302] next_to_use <81> [ 4956.420302] next_to_clean <d6> [ 4956.420303] buffer_info[next_to_clean] [ 4956.420303] time_stamp <15498d> [ 4956.420304] next_to_watch <d6> [ 4956.420304] jiffies <15511c> [ 4956.420305] next_to_watch.status <1> [ 4956.420537] eth1: Detected Tx Unit Hang: [ 4956.420538] TDH <b0> [ 4956.420538] TDT <b0> [ 4956.420539] next_to_use <b0> [ 4956.420539] next_to_clean <5> [ 4956.420540] buffer_info[next_to_clean]: [ 4956.420540] time_stamp <15498e> [ 4956.420541] next_to_watch <5> [ 4956.420542] jiffies <15511c> [ 4956.420542] next_to_watch.status <1> [ 4956.423064] CPU 1: Bank 0: 3200004000000800 [ 4956.423190] CPU 1: Bank 5: 3200220024080400 [ 4956.423315] Kernel panic - not syncing: CPU context corrupt [ 4956.423933] Rebooting in 3 seconds.. But in 2.6.26.5 i not see errors like this 2 days... Also if system not have network load - i can't do panic by cpuburn or compiling sources... Anyone i think its good that my message also go to general mail-list and bugzilla... I try get more info... if you or anyone have idea how test this bug - i can do it) Thanks! > On Mon, Sep 22, 2008 at 10:17:01AM +0400, Badalian Vyacheslav wrote: > >> Jarek Poplawski: >> >> Hello! >> There all requested information. >> I try 2.6.26.5 and again get: >> [143784.513166] CPU 2: Bank 0: 3200004000000800 >> [143784.513241] CPU 2: Bank 5: 3200121020080400 >> [143784.513241] Kernel panic - not syncing: CPU context corrupt >> [143784.513282] Rebooting in 3 seconds.. >> > > Hi, > > Actually, I suggested you to read this Machine Check Exception help, > because I think you should first try to test your hardware instead of > sending configs. This type of error isn't usually seen with netdev > bugs. > > Since I'm not a hardware expert I added linux-kernel to Cc, and > probably you should do the same (I added it to this one). But, until > you have any better advice I think you should do some long and heavy > testing of your PCs especially for overheating or memory problems. > We can start to analyze other bugs after we are sure the hardware is > OK. > > BTW, probably your attachements are too big for the lists and the > message could be dropped. It would be better to add some link to a > server or use bugzilla for this. > > Thanks, > Jarek P. > > >> Attached all info that i was can get from PC. Maybe problem that we use >> Core Duo Quard processors? It's 64bit, but kernel and software compile >> as 32. On 2 x "OLD HT(2 core) Xeon 32 bit" PC all work great... >> >> Simple step to reproduce >> Add iptables and tc rules.... give above 500 mbs total traffic (we have >> above 300/200 mbs in/out) from any (many?) ip what preset in TC rules >> and run any CPU like process (like compiling)... >> >> Thanks for answers! >> >> Denys Fedoryshchenko: >> Hello! >> i try run nmi_watchdog... >> i hope its helps, but this PC have hardware watchdog (bios have params >> for it), but kernel not have module for it - /S3210SH/ (ICH9-R chipset). >> I think simple not add ID to driver. I try write to author of it - >> wim@...ana.be. >> Please ask for me... this line: >> [ 0.143332] APIC timer registered as dummy, due to nmi_watchdog=1! >> its normal start of nmi_watchdog? or i need use nmi_watchdog=2? >> >> Thanks for answers! >> >> >>> Denys Fedoryshchenko wrote, On 09/20/2008 08:11 PM: >>> ... >>> >>> >>> >>>> P.S. For netdev, i have one more friend - who is complaining that shapers is >>>> crashing on Intel machines (who uses TSC, he have two different "Core" based >>>> servers, and both is crashing). With HPET i dont have any problem on high >>>> performance shapers (except, that it is CPU expensive). It happens on latest >>>> 2.6.26.5 too. Machine getting hard lockup, and nothing than hardware watchdog >>>> able to recover it. They dont have experience to get actual reason of this >>>> issue and they dont know english well to report this issue. >>>> >>>> >>> Is your friend sure it's because of shapers? If he/she can patch >>> there is no need to know English well to report here: >>> >>> Subject: 2.6.26.5 tc not OK >>> >>> Config: >>> .config >>> >>> tc script: >>> script >>> >>> dmesg: >>> dmesg >>> >>> not OK when: script run/script not run >>> >>> patch #1 not OK >>> patch #2 not OK >>> ... >>> patch #2001 OK! >>> >>> Jarek P. >>> >>> >>> > > > > > > > > > > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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