Kernel panic in a stable system (top error ?)
I'm running woody on a mac performa 6400/200. The system has been stable
for months, and kept current with the stable distribution with apt-get
upgrade.
This morning, while squid was doing its daily file update, I ran top to
monitor the system load (the squid refresh is probably the most cpu
intensive process that is run.) While top was running, I had a kernel
panic. The syslog messages are appended below.
This is the only crash in circa six months with this configuration.
Do I have a problem? Where else should I look? I am a relative newbie
with linux, and admit that the syslog trace doesn't mean much to me.
Any hints or help greatly appreciated.
Thanks,
Brad
Jun 4 06:30:01 performa kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000004 (error 20000000)
Jun 4 06:30:01 performa kernel: NIP: C00555D4 XER: 00000000 LR:
C00560E4 REGS: c620bc90 TRAP: 0300
Jun 4 06:30:01 performa kernel: MSR: 00009032 [EE, IR, DR, ME]
Jun 4 06:30:01 performa kernel: TASK = c620a000[19686] 'top' mm->pgd
c489a000 Last syscall: 3
Jun 4 06:30:01 performa kernel: last math c6fa0000
Jun 4 06:30:01 performa kernel: GPR00: 00000100 C620BD40 C620A000
00004DC1 C2E6F000 0000000B 00000000 FFFFFFFF
Jun 4 06:30:01 performa kernel: GPR08: 00000000 00000000 00000000
00000000 8882208C 10020D78 00000000 100BD380
Jun 4 06:30:01 performa kernel: GPR16: 100BBD68 10060000 00000004
00000000 C2E6F000 00000000 00000000 C2E98216
Jun 4 06:30:01 performa kernel: GPR24: 00000052 0FFEE0D8 C2E981C4
C620BDD8 C620BDD0 0003D000 00004DC1 C2E98000
Jun 4 06:30:01 performa kernel: Call backtrace:
Jun 4 06:30:01 performa kernel: C620BDF0 C00560E4 C00561F8 C002F98C
C0003EC4 0FFD81CC 0FFD8608
Jun 4 06:30:01 performa kernel: 10006728 100046C4 100026FC 0FE25C30
00000000
Jun 4 06:30:01 performa kernel: Kernel panic: kernel access of bad area
pc c00555d4 lr c00560e4 address 4 tsk top/19686
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