Date: Sat, 19 Feb 2005 15:30:06 -0800 (PST) From: Doug White <dwhite@gumbysoft.com> To: Rong-En Fan <grafan@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: panic: Fatal trap 12: page fault while in kernel mode Message-ID: <20050219152408.K69556@carver.gumbysoft.com> In-Reply-To: <6eb82e0502170344624ce335@mail.gmail.com> References: <6eb82e05021511137e43b553@mail.gmail.com> <6eb82e0502170344624ce335@mail.gmail.com>
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On Thu, 17 Feb 2005, Rong-En Fan wrote: > On Wed, 16 Feb 2005 15:36:25 -0800 (PST), Doug White > <dwhite@gumbysoft.com> wrote: > > On Wed, 16 Feb 2005, Rong-En Fan wrote: > > > > > Hello, > > > > > > This is a 5.3-RELEASE-p5/amd64 on IBM X236 (EM64T) with 2GB RAM > > > and a LSI 21320 rmpt(4) running at 160MB/s with a hardware > > > RAID (da0, da1). HTT is enabled. When I run benchmark/blogbench on > > > /da0/ I can *reproduce* this panic again and again: > > > (I'm getting a dump now, let me fsck first) > > > kernel conf & dmesg (boot -v) are at > > > http://rafan.infor.org/tmp/236/ > > > > I only have an 2x244 Opteron box so I'm not sure if this is a problem with > > KSE or with hyperthreading. I'll try the benchmark anyway and see if I > > can reproduce. > > > > Looks like I'll need to rebuild first, I'm getting the "exiting from > > __thread_start" error... I got a good -CURRENT build and run this test. It appears to get stuck in an endless loop at the end but no panics result. I also ran it on a i386 -CURRENT machine for comparison and that completed, so this program appears to have 64-bit cleanliness problems. I'll see if I can build a RELENG_5 or 5.3 amd64 box and run the same diagnostic. Its possible its a bug thats been fixed in CURRENT but not backported yet. > If I use machdep.hlt_logical_cpus=1, I got the same panic. > And when I use kgdb to read the kernel dump, I see only > #1 ?????? (??) in backtrace. > > I just reinstall the system to 5.3-p5, i386. It does not > panic and finsih the test two times. I'll run more to see if is > panics. > > Regards, > Rong-En Fan > -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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