Here's the configuration information:
I started with Red Hat 4.0 for Alpha
Kernel 2.0.27 everything I needed compiled in static
Mainboard Alpha PC164 (500Mhz)
Adaptec 2940 or NCR-825 (same problem with either)
Dec FDDI card (not being used)
Diamond Stealth 64 VRAM (console only)
I can bring up the machine, build the kernel, etc. with no problem. If I
do the following:
dd if=/dev/zero of=/usr/tmp/foo bs=1024k count=100
dd if=/dev/zero of=/usr/tmp/bar bs=1024k count=100 &
dd if=/usr/tmp/foo of=/dev/null &
The two disk operations running at once will provide the following
kernel oops. This output comes when the NCR card was installed. I get
the same behavior (although the oops might be different I'd have to
check) with the Adaptec.
Dec 9 08:39:42 render-4 kernel: Unable to handle kernel paging request at virtual address 0000000000f0c05e
Dec 9 08:39:42 render-4 kernel: swapper(0): Oops 0
Dec 9 08:39:42 render-4 kernel: pc = [<fffffc000031b780>] ps = 0007
Dec 9 08:39:42 render-4 kernel: rp = [<fffffc000033d670>] sp = fffffc0000303ce0
Dec 9 08:39:42 render-4 kernel: r0=7 r1=4000094aabe r2=1 r3=fffffc0004fda7f8
Dec 9 08:39:42 render-4 kernel: r8=80
Dec 9 08:39:42 render-4 kernel: r16=fffffc00005c15a8 r17=1 r18=80 r19=200
Dec 9 08:39:42 render-4 kernel: r20=7 r21=7 r22=1f r23=3bee
Dec 9 08:39:42 render-4 kernel: r24=9000000000000000 r25=a r26=fffffc000033d670 r27=fffffc000031b720
Dec 9 08:39:42 render-4 kernel: r28=1 r29=fffffc000047a770 r30=fffffc0000303ce0
Dec 9 08:39:42 render-4 kernel: Code: 47ff041f 47ff041f 47ff041f <a4690000> a5290008 e460002d a4230000 40205521 e4200003
Dec 9 08:39:42 render-4 kernel: Aiee, killing interrupt handler
Dec 9 08:39:42 render-4 kernel: kfree of non-kmalloced memory: fffffc0000456028, next= 0000000000000000, order=1
Dec 9 08:39:42 render-4 kernel: kfree of non-kmalloced memory: fffffc0000456010, next= 0000000000000000, order=0
Dec 9 08:39:42 render-4 kernel: kfree of non-kmalloced memory: fffffc0000456930, next= 0000000000000000, order=0
Dec 9 08:39:42 render-4 kernel: idle task may not sleep
Dec 9 08:39:42 render-4 last message repeated 4 times
What should I do next? Is there any more information that I can provide
that would be useful? Who else should I send this to?
This problem is easy to reproduce so I'd be happy to work with anyone
who can help take a stab at this.
- |Daryll
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