Weird Matrix of New Problems on iBook2
Running Sid on an iBook2 600MHz/640MB RAM 12":
1) Lately when I've been waking the machine from sleep, perhaps more
than 50% of the time it has spun up the HD and sounded like it was
waking up, but
- the display remains blank and black
- ping/ssh from other machines fails
- closing the lid again does not put it back to sleep
When I give up on resuscitating it by any other means, I reset it and
-- here's the creepy part -- the screen stays black indefinitely,
across several more resets. Whether I hold down Option, or
cmd-opt-O-F, or reset the PRAM, it's a completely random number of
resets before my display works again. Sometimes I hear disk activity
that sounds like a boot sequence, and sometimes I don't.
2) X will occasionally die if I move the machine a little: I can't get
it to happen when I'm trying, but when I least expect it and least
want it, the screen will go blank and I will return to the gdm login
screen. /var/log/syslog reports succinctly:
May 6 04:04:47 settantacinque gnome-name-server[663]: input condition is: 0x11, exiting
May 6 04:04:47 settantacinque gdm[584]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
(these may not be completely related, as the first line sometimes
occurs without the second, but the second never occurs without the
first)
3) Sometimes my X session will freeze. This can look like a kernel
crash, but it hasn't happened recently enough for me to be vigilant in
investigating it. My main evidence for thinking it is a kernel crash
is that I once or twice got an xmon prompt (but not always) and every
time it happens, I can no longer ping/ssh the machine (so i.e. it's
evidently not just an X freeze). When this happens without the xmon,
I have to give 'er the 3-fingered salute. Here is what was in syslog
when it happened just now (alongside an x-crash) (19 lines)
[kernel is a home-built 2.4.18-ben0 that was problem-free for months]
May 6 11:57:31 settantacinque gnome-name-server[658]: input condition is: 0x11, exiting
May 6 11:57:32 settantacinque gdm[582]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
May 6 11:57:38 settantacinque gdm[815]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
May 6 11:57:45 settantacinque gdm[821]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0
May 6 11:57:45 settantacinque kernel: Machine check in kernel mode.
May 6 11:57:45 settantacinque kernel: Caused by (from SRR1=49030): Transfer error ack signal
May 6 11:57:45 settantacinque kernel: Oops: machine check, sig: 7
May 6 11:57:45 settantacinque kernel: NIP: C0164CBC XER: 20000000 LR: C0165408 SP: E1657A80 REGS: e16579d0 TRAP: 0200 Not tainted
May 6 11:57:45 settantacinque kernel: MSR: 00049030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
May 6 11:57:45 settantacinque kernel: TASK = e1656000[822] 'XFree86' Last syscall: 54
May 6 11:57:45 settantacinque kernel: last math e1656000 last altivec 00000000
May 6 11:57:45 settantacinque kernel: GPR00: 0000000C E1657A80 E1656000 FFFFFFFF C1017800 00000000 C1017A78 0104033B
May 6 11:57:45 settantacinque kernel: GPR08: 12005A74 E9000000 00000000 00010000 00000020 101D34E0 00000000 7FFFFDB4
May 6 11:57:45 settantacinque kernel: GPR16: 101D0000 101A0E24 10170000 101D0000 00009032 00000008 00000020 00000000
May 6 11:57:45 settantacinque kernel: GPR24: 00000006 00000300 00000400 00000300 C1017800 C1017800 E1657CE8 C1017800
May 6 11:57:45 settantacinque kernel: Call backtrace:
May 6 11:57:45 settantacinque kernel: 0000FF00 E1657B70 C0166070 C016664C C015EA80 C00496EC C000431C
May 6 11:57:45 settantacinque kernel: 00000004 10054220 10847B30 10832274 108331A8 108340EC 10023D08
May 6 11:57:45 settantacinque kernel: 1008DDE4 0FDE0C30 00000000
This crash gave me the first indication of what might be the physical
cause: I was rotating the AC adapter plug where it goes into the
computer. Oh, but when I try to reproduce it, no amount of
adapter-jiggling will crash it again. Grrr.
This been happening with two kernels I've built, the above-mentioned
2.4.18-ben0 and a 2.4.19-pre3. Both had been working fine until
sometime in the past month.
I've been running Unstable on two different iBook2s since November,
2001, and this problem is completely new to me, and I haven't seen it
on the list. It started some time in the past month, and has
continued through two dist-upgrades, though the last one was over a
week ago and I'm going to dist-upgrade again today, full of hope.
Any ideas?
O.
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