svn commit: r255219 - in head: contrib/tcpdump lib/libc lib/libc/capability lib/libc/include lib/libc/sys lib/libprocstat sbin/dhclient sbin/hastd sys/amd64/linux32 sys/bsm sys/cddl/compat/opensola...

[Pawel Jakub Dawidek]

On Thu, Sep 05, 2013 at 05:44:48AM +0300, Konstantin Belousov wrote:
> On Thu, Sep 05, 2013 at 12:09:57AM +0000, Pawel Jakub Dawidek wrote:
> > Author: pjd
> > Date: Thu Sep  5 00:09:56 2013
> > New Revision: 255219
> > URL: http://svnweb.freebsd.org/changeset/base/255219
> 
> Shortly after the boot of the updated kernel, I get:
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 7; apic id = 07
> fault virtual address	= 0x0
> fault code		= supervisor read data, page not present
> instruction pointer	= 0x20:0xffffffff802f685a
> stack pointer	        = 0x28:0xfffffe0235d50460
> frame pointer	        = 0x28:0xfffffe0235d504b0
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process		= 199 (ip6addrctl)
> [ thread pid 199 tid 100086 ]
> Stopped at      0xffffffff802f685a = fget+0x2a: movq    (%rdx),%rax
> db> bt
> Tracing pid 199 tid 100086 td 0xfffff80005351980
> fget() at 0xffffffff802f685a = fget+0x2a/frame 0xfffffe0235d504b0
> fdesc_lookup() at 0xffffffff80e6d88d = fdesc_lookup+0xed/frame 0xfffffe0235d50510
> VOP_LOOKUP_APV() at 0xffffffff8057b54e = VOP_LOOKUP_APV+0x12e/frame 0xfffffe0235d50560
> lookup() at 0xffffffff803d31b0 = lookup+0x5a0/frame 0xfffffe0235d505f0
> namei() at 0xffffffff803d2934 = namei+0x464/frame 0xfffffe0235d506c0
> vn_open_cred() at 0xffffffff803ee78f = vn_open_cred+0x27f/frame 0xfffffe0235d50810
> kern_openat() at 0xffffffff803e7bfd = kern_openat+0x22d/frame 0xfffffe0235d50980
> amd64_syscall() at 0xffffffff805387dd = amd64_syscall+0x28d/frame 0xfffffe0235d50ab0
> Xfast_syscall() at 0xffffffff8051f21b = Xfast_syscall+0xfb/frame 0xfffffe0235d50ab0
> --- syscall (5, FreeBSD ELF64, sys_open), rip = 0x800942d6a, rsp = 0x7fffffffcff8, rbp = 0x7fffffffd030 ---
> 
> (gdb) list *fget+0x2a
> 0xffffffff802f685a is in fget (/usr/home/kostik/work/build/bsd/DEV/src/sys/kern/kern_descrip.c:2385).
> 
> I do not have any capsicum-related options in the kernel config.

Do you have some local changes? Could you try to do full buildkernel?
There were two compilation issues when CAPABILITIES option was absent in
kernel configuration, so something isn't right is you were able to
compile your kernel.

-- 
Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://mobter.com
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