Machine Hangs on Software Reboot

Rob Hardy (robert@aurora.carleton.ca)
Sun, 17 Mar 1996 06:55:00 -0500 (EST)

We have a network of linux machines. We were recently loaned a DX4/100 on
a recent gigabyte PCI motherboard. This machine works perfectly except it
refuses to reboot under linux. A keyboard reboot works fine under msdog
A software reboot program also works fine.

It will get part way through and lock the machine solid. I've turned off
anything vaguely related in the bios. Turned off caches etc.. Linux probably
overwrites those choices anyways...

I finally figured that perhaps an strace of a reboot would help.
It looks normal to me. Can anyone help?

Rob

open("/var/log/wtmp", O_WRONLY|O_APPEND) = 3
time([827062567]) = 827062567
write(3, "\1\0\377\277\0\0\0\0~\0\4@^\374\377"..., 56) = 56
close(3) = 0
sync() = 0
sigprocmask(SIG_BLOCK, [ALRM], []) = 0
sigaction(SIGALRM, {0x4005e2a0, [], 0}, {SIG_DFL}) = 0
time(NULL) = 827062567
alarm(2) = 0
sigsuspend([] <unfinished ...>
--- SIGALRM (Alarm clock) ---
<... sigsuspend resumed> ) = -1 EINTR (Interrupted system call)
sigreturn() = ? (mask now [ALRM])
time(NULL) = 827062569
sigaction(SIGALRM, {SIG_DFL}, NULL) = 0
alarm(0) = 0
sigprocmask(SIG_SETMASK, [], NULL) = 0
reboot(0xfee1dead, 0x28121969, 0x1234567

Then it hangs solid. Keyboard will still reset if disconnected and
reconnected but leds as unaffected by numlock etc.

--
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Robert Hardy       System Administrator, Network and Web Consultant, CSA
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