Date: Tue, 16 Feb 2016 19:30:23 -0600 From: Mahmoud Al-Qudsi <mqudsi@neosmart.net> To: freebsd-stable@freebsd.org Subject: 7 LOR dumps related to ufs, tmpfs, igmp Message-ID: <CACcTrKcZ526rdJDbFUnN1_x6fNoZ8jZj1CQF=KakX974Ohv2yQ@mail.gmail.com>
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Hello all, I'm including below a list of LORs that I experienced running an x86 build of 10.2-RELEASE-p2. Some known LORs are also included for posterity's sake, as all are from a single session and appear in chronological order, should this information be of any additional use. I believe from a bit of hunting around that not all are documented/known-ok. Also, one is repeated below. I thought of submitting a separate email for each, but did not want to clutter the mailing list with needless "spam." Pardon the long lines. Thanks, Mahmoud 1st 0xc6aaa46c ufs (ufs) @ sys/kern/vfs_mount.c:1227 2nd 0xc6aaa5d4 devfs (devfs) @ sys/kern/vfs_subr.c:2285 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,632e7262,3832323a,c0000a35,db7df750,...) at db_trace_self_wrapper+0x2d/frame 0xdb7df708 kdb_backtrace(c120e109,c6aaa5d4,c11ffba6,c65ae7f0,c1217ba8,...) at kdb_backtrace+0x30/frame 0xdb7df76c witness_checkorder(c6aaa5d4,9,c1217ba8,8ed,c6aaa640,...) at witness_checkorder+0xd4f/frame 0xdb7df7b8 __lockmgr_args(c6aaa5d4,80100,c6aaa640,0,0,0,c1217ba8,8ed) at __lockmgr_args+0x8d4/frame 0xdb7df894 vop_stdlock(db7df908,c1486da8,c16d26e8,8,c1759564,...) at vop_stdlock+0x53/frame 0xdb7df8c4 VOP_LOCK1_APV(c14756ac,db7df908,c0b39b31,c1759554,c14c28c0,...) at VOP_LOCK1_APV+0x10a/frame 0xdb7df8f0 _vn_lock(c6aaa5a0,80100,c1217ba8,8ed,db7df974,...) at _vn_lock+0xca/frame 0xdb7df930 vputx(c6aaa5a0,0,c11faeb6,20e,0,...) at vputx+0x37a/frame 0xdb7df974 cd9660_unmount(c6ed5000,8080000,db7df9e0,510,c1486da8,...) at cd9660_unmount+0x1dc/frame 0xdb7df9a8 dounmount(c6ed5000,8080000,c6eab310,48f,db7dfa58,...) at dounmount+0x5fa/frame 0xdb7dfa08 sys_unmount(c6eab310,db7dfb68,c6e9c304,d6,c108d221,...) at sys_unmount+0x3bb/frame 0xdb7dfad8 syscall(db7dfba8) at syscall+0x336/frame 0xdb7dfb9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xdb7dfb9c --- syscall (22, FreeBSD ELF32, sys_unmount), eip = 0x853d873, esp = 0xbfbfe6d4, ebp = 0xbfbfe7a0 --- lock order reversal: 1st 0xc7d9da0c tmpfs (tmpfs) @ sys/kern/vfs_mount.c:848 2nd 0xc7e9473c ufs (ufs) @ sys/kern/vfs_subr.c:2174 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,3731323a,34000a34,a38,0,...) at db_trace_self_wrapper+0x2d/frame 0xdb7e3578 kdb_backtrace(c120e109,c7e9473c,c11f31cd,c65ae928,c1217ba8,...) at kdb_backtrace+0x30/frame 0xdb7e35dc witness_checkorder(c7e9473c,9,c1217ba8,87e,c7e947a8,...) at witness_checkorder+0xd4f/frame 0xdb7e3628 __lockmgr_args(c7e9473c,80100,c7e947a8,0,0,...) at __lockmgr_args+0x8d4/frame 0xdb7e3708 ffs_lock(db7e3788,c65a6248,c65acb80,c65a6248,c16d10e8,...) at ffs_lock+0x97/frame 0xdb7e3744 VOP_LOCK1_APV(c14ae018,db7e3788,c65a8468,ffffffff,c14c28c0,...) at VOP_LOCK1_APV+0x10a/frame 0xdb7e3770 _vn_lock(c7e94708,80100,c1217ba8,87e,57,...) at _vn_lock+0xca/frame 0xdb7e37b0 vget(c7e94708,80100,c6daec40,57,0,...) at vget+0x77/frame 0xdb7e37e4 vfs_hash_get(c70025d8,2,80000,c6daec40,db7e38a4,...) at vfs_hash_get+0xff/frame 0xdb7e3810 ffs_vgetf(c70025d8,2,80000,db7e38a4,0) at ffs_vgetf+0x44/frame 0xdb7e386c ffs_vget(c70025d8,2,80000,db7e38a4,c16fe418,...) at ffs_vget+0x2f/frame 0xdb7e388c ufs_root(c70025d8,80000,db7e3a90,359,c6f12390,...) at ufs_root+0x49/frame 0xdb7e38b0 vfs_donmount(c6daec40,0,0,c6ea8100,c6ea8100,...) at vfs_donmount+0x13a7/frame 0xdb7e3ab0 sys_nmount(c6daec40,db7e3b68,c6cd2000,d6,e2,...) at sys_nmount+0x78/frame 0xdb7e3ad8 syscall(db7e3ba8) at syscall+0x336/frame 0xdb7e3b9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xdb7e3b9c --- syscall (378, FreeBSD ELF32, sys_nmount), eip = 0x280dc9eb, esp = 0xbfbfdda0, ebp = 0xbfbfe2f8 --- lock order reversal: 1st 0xc69bba3c if_addr_lock (if_addr_lock) @ sys/netinet/igmp.c:1710 2nd 0xc175d718 ifnet_rw (ifnet_rw) @ sys/net/if.c:244 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,3a632e66,a343432,692f7400,2e706d67,...) at db_trace_self_wrapper+0x2d/frame 0xdab56720 kdb_backtrace(c120e109,c175d718,c121cefe,c65aa960,c121c998,...) at kdb_backtrace+0x30/frame 0xdab56784 witness_checkorder(c175d718,1,c121c998,f4,0,...) at witness_checkorder+0xd4f/frame 0xdab567d0 __rw_rlock(c175d728,c121c998,f4,c771f500,dab568dc,...) at __rw_rlock+0x92/frame 0xdab56858 ifnet_byindex(1,c12454ce,da,c65ab4c0,c26be200,...) at ifnet_byindex+0x23/frame 0xdab56870 igmp_intr(c771f500,c6d95c00,dab56930,c0e06833,c26c3900,...) at igmp_intr+0x1e/frame 0xdab568dc netisr_dispatch_src(2,0,c771f500) at netisr_dispatch_src+0xb6/frame 0xdab5691c netisr_dispatch(2,c771f500,0,89a,dab56978,...) at netisr_dispatch+0x20/frame 0xdab56930 igmp_v1v2_queue_report(c175d8dc,4,c122a604,6e4,c175a310,...) at igmp_v1v2_queue_report+0x1a9/frame 0xdab56978 igmp_fasttimo(dab56a50,c0b3a7cc,c175a300,dab56a50,c0b6421d,...) at igmp_fasttimo+0x417/frame 0xdab56a1c pffasttimo(0,0,c12073f5,285,c0b813be,...) at pffasttimo+0x30/frame 0xdab56a50 softclock_call_cc(0,0,c12073f5,32b,0,...) at softclock_call_cc+0x1ac/frame 0xdab56aec softclock(c175a300,c11fe255,566,78e5b803,c66e5f48,...) at softclock+0x40/frame 0xdab56b0c intr_event_execute_handlers(c1591590,c66e5f00,c11fe255,566,8,...) at intr_event_execute_handlers+0x8b/frame 0xdab56b34 ithread_loop(c65a3260,dab56ba8,c11fdfa8,3f2,0,...) at ithread_loop+0x90/frame 0xdab56b6c fork_exit(c0b1e6d0,c65a3260,dab56ba8) at fork_exit+0x7f/frame 0xdab56b94 fork_trampoline() at fork_trampoline+0x8/frame 0xdab56b94 --- trap 0, eip = 0, esp = 0xdab56be0, ebp = 0 --- lock order reversal: 1st 0xc724ce44 tmpfs (tmpfs) @ sys/kern/vfs_mount.c:1227 2nd 0xc9a2c19c syncer (syncer) @ sys/kern/vfs_subr.c:2285 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,72627573,323a632e,a353832,e769f700,...) at db_trace_self_wrapper+0x2d/frame 0xe769f738 kdb_backtrace(c120e109,c9a2c19c,c121829f,c65aed38,c1217ba8,...) at kdb_backtrace+0x30/frame 0xe769f79c witness_checkorder(c9a2c19c,9,c1217ba8,8ed,c9a2c208,...) at witness_checkorder+0xd4f/frame 0xe769f7e8 __lockmgr_args(c9a2c19c,80100,c9a2c208,0,0,0,c1217ba8,8ed) at __lockmgr_args+0x8d4/frame 0xe769f8c4 vop_stdlock(e769f938,246,1,e769f954,c65aecd0,...) at vop_stdlock+0x53/frame 0xe769f8f4 VOP_LOCK1_APV(c14918d4,e769f938,c0b39b31,c9a2c208,c14c28c0,...) at VOP_LOCK1_APV+0x10a/frame 0xe769f920 _vn_lock(c9a2c168,80100,c1217ba8,8ed,c6d04930,...) at _vn_lock+0xca/frame 0xe769f960 vputx(c70068c4,0,c1217148,510,c1486da8,...) at vputx+0x37a/frame 0xe769f9a8 dounmount(c70068c4,8000000,c6d04930,48f,e769fa58,...) at dounmount+0x4bf/frame 0xe769fa08 sys_unmount(c6d04930,e769fb68,c937a304,d6,c108d221,...) at sys_unmount+0x3bb/frame 0xe769fad8 syscall(e769fba8) at syscall+0x336/frame 0xe769fb9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xe769fb9c --- syscall (22, FreeBSD ELF32, sys_unmount), eip = 0x280c93eb, esp = 0xbfbfe5d4, ebp = 0xbfbfe6a0 --- lock order reversal: 1st 0xc724ce44 tmpfs (tmpfs) @ sys/kern/vfs_mount.c:1227 2nd 0xc9a2c5d4 devfs (devfs) @ sys/ufs/ffs/ffs_vfsops.c:1375 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,7366765f,2e73706f,33313a63,a3537,...) at db_trace_self_wrapper+0x2d/frame 0xe769f668 kdb_backtrace(c120e109,c9a2c5d4,c11ffba6,c65ae7f0,c12425cd,...) at kdb_backtrace+0x30/frame 0xe769f6cc witness_checkorder(c9a2c5d4,9,c12425cd,55f,0,...) at witness_checkorder+0xd4f/frame 0xe769f718 __lockmgr_args(c9a2c5d4,80400,c9a2c640,0,0,0,c12425cd,55f) at __lockmgr_args+0x8d4/frame 0xe769f7f4 vop_stdlock(e769f868,c0baeb8e,c15a59ec,4,c15a59dc,...) at vop_stdlock+0x53/frame 0xe769f824 VOP_LOCK1_APV(c14756ac,e769f868,0,0,c14c28c0,...) at VOP_LOCK1_APV+0x10a/frame 0xe769f850 _vn_lock(c9a2c5a0,80400,c12425cd,55f,1,...) at _vn_lock+0xca/frame 0xe769f890 ffs_flushfiles(c70068c4,8,c6d04930,e769f920,c0b5460d,...) at ffs_flushfiles+0x151/frame 0xe769f8e0 softdep_flushfiles(c70068c4,0,c6d04930,0,0,...) at softdep_flushfiles+0x8b/frame 0xe769f960 ffs_unmount(c70068c4,8000000,c1217148,510,c1486da8,...) at ffs_unmount+0x7b/frame 0xe769f9a8 dounmount(c70068c4,8000000,c6d04930,48f,e769fa58,...) at dounmount+0x5fa/frame 0xe769fa08 sys_unmount(c6d04930,e769fb68,c937a304,d6,c108d221,...) at sys_unmount+0x3bb/frame 0xe769fad8 syscall(e769fba8) at syscall+0x336/frame 0xe769fb9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xe769fb9c --- syscall (22, FreeBSD ELF32, sys_unmount), eip = 0x280c93eb, esp = 0xbfbfe5d4, ebp = 0xbfbfe6a0 --- lock order reversal: 1st 0xda98da2c bufwait (bufwait) @ sys/kern/vfs_bio.c:3124 2nd 0xc754e200 dirhash (dirhash) @ sys/ufs/ufs/ufs_dirhash.c:280 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,7366752f,7269645f,68736168,323a632e,...) at db_trace_self_wrapper+0x2d/frame 0xe9bb55d0 kdb_backtrace(c120e109,c754e200,c1243661,c65ae990,c1243289,...) at kdb_backtrace+0x30/frame 0xe9bb5634 witness_checkorder(c754e200,9,c1243289,118,0,...) at witness_checkorder+0xd4f/frame 0xe9bb5680 _sx_xlock(c754e200,0,c1243289,118,c7c9b000,...) at _sx_xlock+0x75/frame 0xe9bb56b0 ufsdirhash_add(c8173ca8,e9bb57d0,724,e9bb5730,e9bb5734,...) at ufsdirhash_add+0x4a/frame 0xe9bb56e0 ufs_direnter(c814f9d8,0,e9bb57d0,e9bb59d4,0,...) at ufs_direnter+0x604/frame 0xe9bb5760 ufs_rename(e9bb5a88,c14c2ce0,c899c9d8,e9bb5a84,c1486da8,...) at ufs_rename+0x1017/frame 0xe9bb590c VOP_RENAME_APV(c14ae018,e9bb5a88,0,1,e9bb59d4,...) at VOP_RENAME_APV+0x104/frame 0xe9bb5938 kern_renameat(c720d310,ffffff9c,bfbfcbc0,ffffff9c,bfbfd3c0,0) at kern_renameat+0x55b/frame 0xe9bb5ab8 sys_rename(c720d310,e9bb5b68,dab2dc90,e9bb5b30,c108d221,...) at sys_rename+0x39/frame 0xe9bb5ad8 syscall(e9bb5ba8) at syscall+0x336/frame 0xe9bb5b9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xe9bb5b9c --- syscall (128, FreeBSD ELF32, sys_rename), eip = 0x281261fb, esp = 0xbfbfc61c, ebp = 0xbfbfc704 --- lock order reversal: 1st 0xc814fa0c ufs (ufs) @ sys/kern/vfs_subr.c:2174 2nd 0xda98da2c bufwait (bufwait) @ sys/ufs/ffs/ffs_vnops.c:262 3rd 0xc9f71cdc ufs (ufs) @ sys/kern/vfs_subr.c:2174 KDB: stack backtrace: db_trace_self_wrapper(c120a33c,3731323a,6f000a34,632e7370,3236323a,...) at db_trace_self_wrapper+0x2d/frame 0xe9bb50e8 kdb_backtrace(c120e122,c9f71cdc,c11f31cd,c65ae928,c1217ba8,...) at kdb_backtrace+0x30/frame 0xe9bb514c witness_checkorder(c9f71cdc,9,c1217ba8,87e,c9f71d48,...) at witness_checkorder+0xd4f/frame 0xe9bb5198 __lockmgr_args(c9f71cdc,80100,c9f71d48,0,0,...) at __lockmgr_args+0x8d4/frame 0xe9bb5278 ffs_lock(e9bb52f8,c15a0bcc,c65a6248,c65acb80,c65a6248,...) at ffs_lock+0x97/frame 0xe9bb52b4 VOP_LOCK1_APV(c14ae018,e9bb52f8,104,1b9,c14c28c0,...) at VOP_LOCK1_APV+0x10a/frame 0xe9bb52e0 _vn_lock(c9f71ca8,80100,c1217ba8,87e,c1216d59,...) at _vn_lock+0xca/frame 0xe9bb5320 vget(c9f71ca8,80100,c720d310,57,0,...) at vget+0x77/frame 0xe9bb5358 vfs_hash_get(c70012ec,1fd924,80000,c720d310,e9bb5458,...) at vfs_hash_get+0xff/frame 0xe9bb5384 ffs_vgetf(c70012ec,1fd924,80000,e9bb5458,1,...) at ffs_vgetf+0x44/frame 0xe9bb53e0 softdep_sync_buf(c814f9d8,da98d9d4,1,0,0,...) at softdep_sync_buf+0xac7/frame 0xe9bb5470 ffs_syncvnode(c814f9d8,1,0,0,c1488968,...) at ffs_syncvnode+0x2dd/frame 0xe9bb54c8 ffs_truncate(c814f9d8,2a00,0,880,c771e200,...) at ffs_truncate+0x70e/frame 0xe9bb5678 ufs_direnter(c814f9d8,c9f7b000,e9bb5740,e9bb5a64,0,...) at ufs_direnter+0x79e/frame 0xe9bb56f8 ufs_makeinode(e9bb5a50,e9bb5a64,c814f9d8,c14c09b8,c814f9d8,...) at ufs_makeinode+0x534/frame 0xe9bb5874 ufs_create(e9bb5970,c13da585,c123c2ce,c70012fc,2,...) at ufs_create+0x30/frame 0xe9bb5898 VOP_CREATE_APV(c14ae018,e9bb5970,e9bb5a64,e9bb5900,c0b3a060,...) at VOP_CREATE_APV+0x12f/frame 0xe9bb58c8 vn_open_cred(e9bb5a08,e9bb5a94,180,0,c771e200,c6eedaf0) at vn_open_cred+0x2f9/frame 0xe9bb5998 vn_open(e9bb5a08,e9bb5a94,180,c6eedaf0,bfbfcbc0,...) at vn_open+0x3d/frame 0xe9bb59c0 kern_openat(c720d310,ffffff9c,bfbfcbc0,0,a02,180) at kern_openat+0x310/frame 0xe9bb5ab4 sys_open(c720d310,e9bb5b68,dab27c90,e9bb5b30,c108d221,...) at sys_open+0x39/frame 0xe9bb5ad8 syscall(e9bb5ba8) at syscall+0x336/frame 0xe9bb5b9c Xint0x80_syscall() at Xint0x80_syscall+0x21/frame 0xe9bb5b9c --- syscall (5, FreeBSD ELF32, sys_open), eip = 0x281f4ac3, esp = 0xbfbfc25c, ebp = 0xbfbfc708 ---
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