Date: Fri, 18 Apr 2014 20:34:54 -0400 From: Winston Smith <smith.winston.101@gmail.com> To: freebsd-arm@freebsd.org Subject: 11.0-BEAGLEBONE-r264670: "lock order reversal" warning on shutdown Message-ID: <CADH-AwFQrXCb6B=1L=K%2B3e8ouOj44%2BoDW8teXME1Ygr%2BHp4-%2BQ@mail.gmail.com>
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Using u-boot-2013.04 and FreeBSD-armv6-11.0-BEAGLEBONE-r264670, I was able to boot from the SD card on a BBB. Upon shutdown, I see the following on the console: root@beaglebone:/boot/msdos # /sbin/halt Apr 19 00:02:33 beaglebone halt: halted by root Apr 19 00:02:33 beaglebone syslogd: exiting on signal 15 Waiting (max 60 seconds) for system process `vnlru' to stop...done Waiting (max 60 seconds) for system process `bufdaemon' to stop...done Waiting (max 60 seconds) for system process `syncer' to stop... Syncing disks, vnodes remaining...2 0 1 0 1 0 0 0 done All buffers synced. lock order reversal: 1st 0xc2e58a54 ufs (ufs) @ /usr/src/FreeBSD-CURRENT/sys/kern/vfs_mount.c:1237 2nd 0xc2e64394 devfs (devfs) @ /usr/src/FreeBSD-CURRENT/sys/fs/msdosfs/msdosfs_vfsops.c:989 KDB: stack backtrace: db_trace_self() at db_trace_self pc = 0xc0542258 lr = 0xc02324bc (db_trace_self_wrapper+0x30) sp = 0xde6d4a18 fp = 0xde6d4b30 r10 = 0xc2e64394 db_trace_self_wrapper() at db_trace_self_wrapper+0x30 pc = 0xc02324bc lr = 0xc039b358 (kdb_backtrace+0x38) sp = 0xde6d4b38 fp = 0xde6d4b40 r4 = 0xc0689484 r5 = 0xc059401b r6 = 0xc0594a31 r7 = 0xc05b3bdd kdb_backtrace() at kdb_backtrace+0x38 pc = 0xc039b358 lr = 0xc03b5c78 (witness_checkorder+0xe50) sp = 0xde6d4b48 fp = 0xde6d4b98 r4 = 0xc059fa6d witness_checkorder() at witness_checkorder+0xe50 pc = 0xc03b5c78 lr = 0xc034829c (__lockmgr_args+0x8b4) sp = 0xde6d4ba0 fp = 0xde6d4c08 r4 = 0x00000000 r5 = 0x00080400 r6 = 0x000003dd r7 = 0xc2e643b4 r8 = 0xc2e64394 r9 = 0x00080000 r10 = 0xc0594a2e __lockmgr_args() at __lockmgr_args+0x8b4 pc = 0xc034829c lr = 0xc03fa524 (vop_stdlock+0x3c) sp = 0xde6d4c10 fp = 0xde6d4c20 r4 = 0xde6d4c40 r5 = 0xc0660df0 r6 = 0x00000000 r7 = 0x00080400 r8 = 0xde6d4c40 r9 = 0x00080300 r10 = 0x000003dd vop_stdlock() at vop_stdlock+0x3c pc = 0xc03fa524 lr = 0xc056c8a4 (VOP_LOCK1_APV+0xd8) sp = 0xde6d4c28 fp = 0xde6d4c38 VOP_LOCK1_APV() at VOP_LOCK1_APV+0xd8 pc = 0xc056c8a4 lr = 0xc0418980 (_vn_lock+0x44) sp = 0xde6d4c40 fp = 0xde6d4c70 r4 = 0xc2e64360 r5 = 0x00000001 r6 = 0xc0594a2e _vn_lock() at _vn_lock+0x44 pc = 0xc0418980 lr = 0xc02aa314 (msdosfs_sync+0x1a0) sp = 0xde6d4c78 fp = 0xde6d4cd0 r4 = 0xde6d4c9c r5 = 0x00000001 r6 = 0xc2d09960 r7 = 0xc2a962b0 r8 = 0x00000000 r9 = 0x00080300 r10 = 0xc2dfe700 msdosfs_sync() at msdosfs_sync+0x1a0 pc = 0xc02aa314 lr = 0xc0402958 (dounmount+0x464) sp = 0xde6d4cd8 fp = 0xde6d4d20 r4 = 0xc2e58a20 r5 = 0x00000000 r6 = 0x00000000 r7 = 0x00000000 r8 = 0xc2d09960 r9 = 0x00080000 r10 = 0x00080000 dounmount() at dounmount+0x464 pc = 0xc0402958 lr = 0xc040b164 (vfs_unmountall+0x48) sp = 0xde6d4d28 fp = 0xde6d4d48 r4 = 0xc2d09960 r5 = 0xc059fa6d r6 = 0xc05a41ab r7 = 0xc2a962b0 r8 = 0xc0661080 r9 = 0xc05c1a76 r10 = 0xc05b4c36 vfs_unmountall() at vfs_unmountall+0x48 pc = 0xc040b164 lr = 0xc03640e4 (kern_reboot+0x468) sp = 0xde6d4d50 fp = 0xde6d4da8 r4 = 0xc066d024 r5 = 0x00000000 r6 = 0xc05a41ab r7 = 0xcd2156a8 r8 = 0x00000008 r9 = 0x00000000 r10 = 0xc092ea58 kern_reboot() at kern_reboot+0x468 pc = 0xc03640e4 lr = 0xc0363c74 ($d) sp = 0xde6d4db0 fp = 0xde6d4db8 r4 = 0xde6d4e18 r5 = 0xc2aa1640 r6 = 0x00000000 r7 = 0x00000000 r8 = 0x00000000 r9 = 0xde6d4e10 r10 = 0x00000004 $d() at $d pc = 0xc0363c74 lr = 0xc0557878 (swi_handler+0x284) sp = 0xde6d4dc0 fp = 0xde6d4e58 r4 = 0xc2d09960 swi_handler() at swi_handler+0x284 pc = 0xc0557878 lr = 0xc0543d74 (swi_exit) sp = 0xde6d4e60 fp = 0xbffffd00 r4 = 0x00000004 r5 = 0x00000002 r6 = 0xbffffcdc r7 = 0x00000037 r8 = 0x00000000 r9 = 0x00000000 swi_exit() at swi_exit pc = 0xc0543d74 lr = 0xc0543d74 (swi_exit) sp = 0xde6d4e60 fp = 0xbffffd00 Unable to unwind further Uptime: 20m13s The operating system has halted. Please press any key to reboot.
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