panic: sbflush_locked

[Brian Fundakowski Feldman]

On Sat, Dec 11, 2004 at 04:48:50PM -0600, Alan Cox wrote:
> I just got the following panic for a second time in the last three days
> doing a "make -jN buildworld".  This is a with a recent copy of HEAD.
> If anyone wants more detail, let me know.
> 
> panic: sbflush_locked: cc 4 || mb 0xffffff0052afa400 || mbcnt 0
> cpuid = 1
> KDB: enter: panic
> [thread pid 12163 tid 100188 ]
> Stopped at      kdb_enter+0x2f: nop     
> db> trace
> Tracing pid 12163 tid 100188 td 0xffffff008d169500
> kdb_enter() at kdb_enter+0x2f
> panic() at panic+0x291
> sbflush_locked() at sbflush_locked+0x64
> sbrelease_locked() at sbrelease_locked+0x1c
> sbrelease() at sbrelease+0x48
> sorflush() at sorflush+0x15c
> sofree() at sofree+0x204
> soclose() at soclose+0x3af
> fifo_cleanup() at fifo_cleanup+0x38
> fifo_close() at fifo_close+0x79
> ufsfifo_close() at ufsfifo_close+0x7d
> vn_close() at vn_close+0x8e
> vn_closefile() at vn_closefile+0x65
> fdrop_locked() at fdrop_locked+0xc0
> closef() at closef+0x39
> close() at close+0x1a5
> syscall() at syscall+0x51e
> Xfast_syscall() at Xfast_syscall+0xa8
> --- syscall (6, FreeBSD ELF64, close), rip = 0x41e2c0, rsp = 0x7fffffffded8, rbp = 0x57a540 ---

I haven't seen this in a very long time, but I've definitely tried to
track it down before with zero luck.

-- 
Brian Fundakowski Feldman                           \'[ FreeBSD ]''''''''''\
  <> green at FreeBSD.org                               \  The Power to Serve! \
 Opinions expressed are my own.                       \,,,,,,,,,,,,,,,,,,,,,,\