Hi,
While upgrading a fileserver / home wireless access point to
6.2-RELEASE, it wouldn't come back after the regular
build/installworld/mergemaster procedures.
I attached a keyboard and monitor to the server and noticed it was
panicking on boot, current process being sysctl:
Feb 13 18:27:51 hyperblast kernel: Fatal trap 12: page fault while in
kernel mode
Feb 13 18:27:51 hyperblast kernel: fault virtual address = 0x0
Feb 13 18:27:51 hyperblast kernel: fault code = supervisor
read, page not present
Feb 13 18:27:51 hyperblast kernel: instruction pointer = 0x20:0xc06fb2a6
Feb 13 18:27:51 hyperblast kernel: stack pointer =
0x28:0xd9734ad8
Feb 13 18:27:51 hyperblast kernel: frame pointer =
0x28:0xc3383000
Feb 13 18:27:51 hyperblast kernel: code segment = base 0x0,
limit 0xfffff, type 0x1b
Feb 13 18:27:51 hyperblast kernel: = DPL 0, pres 1, def32 1, gran 1
Feb 13 18:27:51 hyperblast kernel: processor eflags = interrupt
enabled, resume, IOPL = 0
Feb 13 18:27:51 hyperblast kernel: current process = 186
(sysctl)
Feb 13 18:27:51 hyperblast kernel: trap number = 12
Feb 13 18:27:51 hyperblast kernel: panic: page fault
Feb 13 18:27:51 hyperblast kernel: Uptime: 3s
Feb 13 18:27:51 hyperblast kernel: Cannot dump. No dump device defined.
Feb 13 18:27:51 hyperblast kernel: Automatic reboot in 15 seconds -
press a key on the console to abort
Feb 13 18:27:51 hyperblast kernel: --> Press a key on the console to reboot,
Feb 13 18:27:51 hyperblast kernel: --> or switch off the system now.
Feb 13 18:27:51 hyperblast kernel: Rebooting...
The last line seen before the panic is sysctl adjusting values
(according to sysctl.conf):
# tail /etc/sysctl.conf
dev.ath.0.tpscale=1
dev.ath.0.diversity=0
Now, there are two interesting things to note:
a) If I uncomment these lines with the system running and reload
(/etc/rc.d/sysctl reload), there's no panic.
b) It used to work just fine on 6.0-RELEASE-p5.
It is not a big deal, but just something that perhaps should be fixed.
For the records, I tried -RELEASE and -STABLE. Currently running -STABLE
(as of 2007-02-12 @ about 2AM GMT)
Best regards,
Hugo
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