Date: Mon, 05 May 2014 11:50:45 -0700 From: Sean Bruno <sbruno@ignoranthack.me> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: stable/10 kassert on unlocked pipe in pipeunlock Message-ID: <1399315845.77984.5.camel@powernoodle.corp.yahoo.com>
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--=-ou/sn3prtAEjuHcd8YhB Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable not sure how $work is able to do this, but this panic floated in on the breeze from the weekend. GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you ar= e welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: panic: Unlocked pipe passed to pipeunlock cpuid =3D 3 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe048c695= 7e0 kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe048c695890 vpanic() at vpanic+0x126/frame 0xfffffe048c6958d0 kassert_panic() at kassert_panic+0x136/frame 0xfffffe048c695940 pipe_write() at pipe_write+0xa00/frame 0xfffffe048c6959f0 dofilewrite() at dofilewrite+0x85/frame 0xfffffe048c695a40 kern_writev() at kern_writev+0x65/frame 0xfffffe048c695a90 sys_write() at sys_write+0x63/frame 0xfffffe048c695ae0 ia32_syscall() at ia32_syscall+0x255/frame 0xfffffe048c695bf0 Xint0x80_syscall() at Xint0x80_syscall+0x95/frame 0xfffffe048c695bf0 --- syscall (4, FreeBSD ELF32, sys_write), rip =3D 0x22430824, rsp =3D 0xff= ff3fd8, rbp =3D 0xffff4004 --- Uptime: 32d1h5m4s Dumping 1975 out of 16358 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..= 91% ------------ (kgdb) whe #0 doadump (textdump=3D1) at pcpu.h:219 #1 0xffffffff805fb2a7 in kern_reboot (howto=3D260) at ../../../kern/kern_s= hutdown.c:452 #2 0xffffffff805fb7b5 in vpanic (fmt=3D<value optimized out>, ap=3D<value = optimized out>) at ../../../kern/kern_shutdown.c:759 #3 0xffffffff805fb646 in kassert_panic (fmt=3D<value optimized out>) at ..= /../../kern/kern_shutdown.c:647 #4 0xffffffff8064fe10 in pipe_write (fp=3D0xfffff802d63445f0, uio=3D0xffff= fe048c695ab0, active_cred=3D0x0, flags=3D0, td=3D0x0) at ../../../kern/sys_= pipe.c:616 #5 0xffffffff8064cbc5 in dofilewrite (td=3D0xfffff801bb3ab920, fd=3D20, fp= =3D0xfffff802d63445f0, auio=3D0xfffffe048c695ab0, offset=3D<value optimized= out>, flags=3D0) at file.h:303 #6 0xffffffff8064c8d5 in kern_writev (td=3D0xfffff801bb3ab920, fd=3D20, au= io=3D0xfffffe048c695ab0) at ../../../kern/sys_generic.c:467 #7 0xffffffff8064c863 in sys_write (td=3D<value optimized out>, uap=3D<val= ue optimized out>) at ../../../kern/sys_generic.c:382 #8 0xffffffff80a332b5 in ia32_syscall (frame=3D0xfffffe048c695c00) at subr= _syscall.c:135 #9 0xffffffff8095cdc5 in Xint0x80_syscall () at ia32_exception.S:73 #10 0x0000000022430824 in ?? () Previous frame inner to this frame (corrupt stack?) Current language: auto; currently minimal --=-ou/sn3prtAEjuHcd8YhB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJTZ92FAAoJEBkJRdwI6BaHe/0IAJSaa6KEMzCPdiriYfWzoOy2 7nq72lAgvUIBBJu4Oq6r1c2qTBgJFh762IBzBl0tW1qzb5eqWSTu+f3gln8PPwin r8oTWtCVrlTvof5f3rU3nTZWKKqBpyEuYplw0nk/okCYnQfEHKgOgULsDpIYezh3 v8CK5ydnE4EKAtzoBvQV7EYf7CtS9lFavko/KZCOqVmf6RtDUPtMI4Z8NBtMnyhY sWb2i66C3txzILfTulwOrc33jWnmRyYZTurOeAnEbq6oMG9Qt5oAFvxF9qJBvdly EOmRyjgfBO2iuz2wIiks4PK9MIZkc8gk5dG8HWxbafAjdDqyrSh4SKuD7ZoZR44= =XyCB -----END PGP SIGNATURE----- --=-ou/sn3prtAEjuHcd8YhB--
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