Messages in this thread | | | Date | Thu, 20 Mar 2008 14:45:01 +0100 | From | Peter Oruba <> | Subject | Re: BUG: soft lockup detected on Phenom with Debian 2.6.24-4 |
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Laurent,
you may have triggered the L2 eviction bug (E298).
Please try
hexdump -s 0xc0010015 -n 8 -C /dev/cpu/0/msr
Output is little-endian, so the left-most byte must have bit 3 enabled meaning TLB caching is disabled.
-Peter
Laurent GUERBY schrieb: > On Sun, 2008-03-16 at 15:43 +0100, Laurent GUERBY wrote: >> On Sat, 2008-03-08 at 23:00 +0100, Laurent GUERBY wrote: >>> Hi, >>> >>> I have a system with an "AMD64 Phenom 9500" quad core cpu, 4GB RAM, >>> "ASUS M3A32 MVP Deluxe wifi" motherboard with latest vendor BIOS >>> (0801). >>> >>> I tried stock debian etch kernel (Debian 2.6.18.dfsg.1-18etch1), >>> machine >>> froze with no message, debian etch backport kernel same, and then >>> Debian 2.6.24-4 from unstable and I got some messages: machine >>> is not frozen but some userland processes are (ps says "Dl" state >>> with child in "Zs" state) and "events/3" is taking 100% cpu >>> according to top: >>> >>> 18 root 15 -5 0 0 0 R 100 0.0 74:59.46 >>> events/3 >>> >>> Got to the same state with ubuntu hardy 2.6.24-8-server kernel. All >>> kernels are untainted, no X running anyway. >>> >>> It takes a few hours of doing some stuff, in my case bootstraping or >>> testing GCC at -j 4, and then the problem happens. >> On 2.6.24-1-amd64 (Debian 2.6.24-4) I got a slightly different >> backtrace in /var/log/messages after a few hours of stressing the >> machine with compilations, see below. The given process >> was stuck and unkillable. >> >> Any idea on what to do/try? > > I changed motherboard and went for a (way cheaper but older) ASUS M2A-VM > with is based on the AMD 690G chipset with the exact same > kernel/phenom/memory/disk/box and installed the latest vendor BIOS > (1604). It took longer (25 hours) to get a stuck and unkillable process > but it did happen, but I got nothing in /var/log/kern.log this time. > > In order to rule out a motherboard or memory issue I bought an Athlon X2 > 4400+ EE and put in replacement of the phenom with the exact same > kenel/memory/disk/box and my stress test has been running for 72 hours > without any issue so far. > > So in the end it seems to be a problem specific to phenom 9500 with the > linux kernel. > > Did anyone succeed in getting a stable linux box based on a phenom 9500 > processor ? "Stable" defined as being able to survive a few days > compiling at -j4 (this is for the GCC compile farm after all :). > > If so I'm interested by the exact motherboard/bios version/kernel > version/distro used. > > As proposed in my first email, ssh root access is possible to my machine > (with either motherboard). > > Thanks in advance, > > Laurent > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > >
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