Date: Fri, 18 Mar 2005 20:24:08 +0000 From: Kris Kennaway <kris@FreeBSD.org> To: stable@FreeBSD.org Cc: Jeff Roberson <jroberson@chesapeake.net> Subject: page fault in sched_add_internal on RELENG_5 with ULE + PREEMPTION Message-ID: <20050318202408.GG40907@hub.freebsd.org>
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quad-cpu amd64 package machine running RELENG_5 with ULE and
PREEMPTION, panicked with:
Mar 17 19:51:58 fbsd-amd64 kernel: pid 8261 (try), uid 0: exited on
signal 10 (core dumped)
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid = 2; apic id = 02
fault virtual address = 0x230
fault code = supervisor read, page not present
instruction pointer = 0x8:0xffffffff8039080f
stack pointer = 0x10:0xffffffffbe420a60
frame pointer = 0x10:0xffffff03e1380c60
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = resume, IOPL = 0
current process = 44 (irq30: mpt1)
trap number = 12
panic: page fault
cpuid = 2
panic: mi_switch: switch in a critical section
cpuid = 2
panic: mi_switch: switch in a critical section
cpuid = 2
[...]
readelf shows that the IP is in:
ffffffff803907d0 sched_add_internal
Kris
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