Date: Fri, 2 Aug 2013 12:15:29 +0100 (BST) From: Anton Shterenlikht <mexas@bris.ac.uk> To: freebsd-current@freebsd.org, freebsd-ia64@freebsd.org Subject: ia64 r252055: panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /usr/src/sys/ia64/ia64/trap.c:562 Message-ID: <201308021115.r72BFTJx017360@mech-anton240.men.bris.ac.uk>
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This happened when exiting from cssh session: panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /usr/src/ sys/ia64/ia64/trap.c:562 cpuid = 1 KDB: enter: panic [ thread pid 52881 tid 100409 ] Stopped at kdb_enter+0x92: [I2] addl r14=0xffffffffffe29320,gp ;; db> show msgbuf msgbufp = 0xe0000040fffbffb8 magic = 63062, size = 98232, r= 17481, w = 17615, ptr = 0xe0000040fffa8000, cksu m= 1385682 panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /usr/src/ sys/ia64/ia64/trap.c:562 db> show thread Thread 100409 at 0xe0000001c8033200: proc (pid 52881): 0xe0000001c8284de0 name: perl stack: 0xa0000000be90a000-0xa0000000be911fff flags: 0x4 pflags: 0 state: RUNNING (CPU 1) priority: 133 container lock: sched lock 1 (0x9ffc000000c4c780) db> show proc Process 52881 (perl) at 0xe0000001c8284de0: state: NORMAL uid: 1001 gids: 1001, 0, 1003 parent: pid 34291 at 0xe00000001b9e04a0 ABI: FreeBSD ELF64 arguments: /usr/local/bin/perl threads: 1 100409 Run CPU 1 perl db> thread 100409 [ thread pid 52881 tid 100409 ] kdb_enter+0x92: [I2] addl r14=0xffffffffffe29320,gp ;; db> bt trap(0x14, 0xa0000000be910c00) at trap+0x980 ivt_Data_TLB() at ivt_Data_TLB+0x1d0 --- trapframe at 0xa0000000be910c00 strlen() at strlen+0x20 kvprintf(0x9ffc000000b0f35a, 0x9ffc000000b56e60, 0xa0000000be911230, 0xa, 0xa000 0000be911300) at kvprintf+0xc80 vprintf(0x9ffc000000b0f358, 0xa0000000be9112f8) at vprintf+0xa0 printf(0x9ffc000000b0f358, 0x9ffc000000b10660, 0xa000000000202400, 0x8, 0xa00000 0000207700, 0xae, 0x8, 0xae) at printf+0x80 _isitmyx(0xa000000000202400, 0xa000000000207700, 0x1, 0x9ffc000000b10660) at _is itmyx+0x260 isitmychild(0xa000000000202400, 0xa000000000207700, 0x9ffc000000531370, 0xb9d, 0 x7fffffffffffd6f0) at isitmychild+0x30 witness_checkorder(0xe00000001ba04ca8, 0x9, 0x9ffc000000b062f8, 0x28e, 0x0) at w itness_checkorder+0x7b0 __mtx_lock_flags(0xe00000001ba04ca8, 0x0, 0x9ffc000000b062f8, 0x28e) at __mtx_lo ck_flags+0x190 kern_sigaction(0xe0000001c8284de0, 0x14, 0x0, 0xa0000000be911380, 0x9ffc000000b0 62f8) at kern_sigaction+0x90 sys_sigaction(0xe0000001c8033200, 0xa0000000be9114e8, 0x0, 0xa0000000be911380) a t sys_sigaction+0xb0 syscall(0xe0000001c8284de0, 0x0, 0x7fffffffffffd6a0, 0xe0000001c8033200, 0x0, 0x 0, 0x9ffc000000991900, 0x8) at syscall+0x5e0 --More-- epc_syscall_return() at epc_syscall_return db>
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