Date: Mon, 2 Aug 2004 11:33:45 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: freebsd-current@freebsd.org Subject: Repeatable Trap 12 on 07-29 kernel Message-ID: <20040802163343.GB8552@dan.emsphone.com>
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I usually run java under libc_r, but if I point java-1.4.2 to libpthreads.so
via libmap.conf, within 5 minutes or so I get a kernel panic:
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 00
fault virtual address = 0x54
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc0565e78
stack pointer = 0x10:0xdee22b28
frame pointer = 0x10:0xdee22b48
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 753 (java)
The system locks hard here (can't break into ddb via serial console), so I
don't have a coredump. addr2line says:
$ addr2line -f -e kernel.debug 0xc0565e78
setrunqueue
../../../kern/kern_switch.c:402
401 td2 = TAILQ_FIRST(&kg->kg_runq);
402 KASSERT((td2->td_kse == NULL),
403 ("unexpected ke present"));
This is with PREEMPTION enabled.
--
Dan Nelson
dnelson@allantgroup.com
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