diff options
| author | Anton Lindqvist <anton@basename.se> | 2019-01-27 17:34:27 +0100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2019-01-28 09:47:41 +0100 |
| commit | 629c2a2773c8b903343ce9e81405461efaca0660 (patch) | |
| tree | 13ae97218412ff391da372f6ce94e01fa7671aee /pkg/report/testdata | |
| parent | 1602ad52323eee46060b9be1d5a261a94b465c49 (diff) | |
pkg/report: improved witness handling
Possible now since the output is consistently prefixed[1].
[1] https://marc.info/?l=openbsd-cvs&m=154850328128727&w=2
Diffstat (limited to 'pkg/report/testdata')
| -rw-r--r-- | pkg/report/testdata/openbsd/report/11 | 102 | ||||
| -rw-r--r-- | pkg/report/testdata/openbsd/report/12 | 255 |
2 files changed, 357 insertions, 0 deletions
diff --git a/pkg/report/testdata/openbsd/report/11 b/pkg/report/testdata/openbsd/report/11 new file mode 100644 index 000000000..22e8298d8 --- /dev/null +++ b/pkg/report/testdata/openbsd/report/11 @@ -0,0 +1,102 @@ +TITLE: witness: thread exiting with locks held + +witness: thread 0xffff800020bba4c8 exiting with the following locks held: +exclusive rrwlock inode r = 0 (0xfffffd806747bc48) locked @ /syzkaller/managers/setuid/kernel/sys/ufs/ufs/ufs_vnops.c:1547 +panic: Thread 0xffff800020b92720 cannot exit while holding sleeplocks + +Stopped at db_enter+0x18: addq $0x8,%rsp + TID PID UID PRFLAGS PFLAGS CPU COMMAND + 333692 13365 73 0x100010 0 1K syslogd +*482899 71 0 0x14000 0x200 0 reaper +db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399 +panic() at panic+0x16c sys/kern/subr_prf.c:208 +witness_thread_exit(11493cd476f78d7c) at witness_thread_exit+0x244 sys/kern/subr_witness.c:1377 +reaper(0) at reaper+0x14f sys/kern/kern_exit.c:412 +end trace frame: 0x0, count: 11 +https://www.openbsd.org/ddb.html describes the minimum info required in bug +reports. Insufficient info makes it difficult to find and fix bugs. +ddb{0}> +ddb{0}> set $lines = 0 +ddb{0}> show panic +Thread 0xffff800020b92720 cannot exit while holding sleeplocks + +ddb{0}> trace +db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399 +panic() at panic+0x16c sys/kern/subr_prf.c:208 +witness_thread_exit(11493cd476f78d7c) at witness_thread_exit+0x244 sys/kern/subr_witness.c:1377 +reaper(0) at reaper+0x14f sys/kern/kern_exit.c:412 +end trace frame: 0x0, count: -4 +ddb{0}> show registers +rdi 0 +rsi 0x1 +rbp 0xffff800020b67ad0 +rbx 0xffff800020b67b70 +rdx 0xffffffff81ec577a cmd0646_9_tim_udma+0x16395 +rcx 0 +rax 0 +r8 0xffffffff81788154 kprintf+0x174 +r9 0x1 +r10 0x6f534a22035bc4ca +r11 0x6db44f275a450c3a +r12 0x3000000008 +r13 0xffff800020b67ae0 +r14 0x100 +r15 0x1 +rip 0xffffffff81107618 db_enter+0x18 +cs 0x8 +rflags 0x246 +rsp 0xffff800020b67ac0 +ss 0x10 +db_enter+0x18: addq $0x8,%rsp +ddb{0}> show proc +PROC (reaper) pid=482899 stat=onproc + flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM> + pri=4, usrpri=51, nice=20 + forw=0xffffffffffffffff, list=0xffff800020b20e10,0xffff800020b21c30 + process=0xffff800020b5b070 user=0xffff800020b62000, vmspace=0xffffffff822fc8c0 + estcpu=1, cpticks=3, pctcpu=0.15 + user=0, sys=3, intr=0 +ddb{0}> ps + PID TID PPID UID S FLAGS WAIT COMMAND + 95915 250426 7524 32767 2 0x490 syz-executor1 + 7524 125781 33554 0 3 0x82 wait syz-executor1 + 81310 477266 28796 32767 2 0x490 syz-executor0 + 28796 145672 33554 0 3 0x82 wait syz-executor0 + 53135 361876 0 0 3 0x14200 bored sosplice + 33554 404063 25047 0 3 0x82 thrsleep syz-fuzzer + 33554 88446 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 460070 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 345337 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 149986 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 42230 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 60955 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 38186 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 513288 25047 0 3 0x4000082 kqread syz-fuzzer + 33554 493206 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 517119 25047 0 3 0x4000082 thrsleep syz-fuzzer + 33554 347325 25047 0 3 0x4000082 thrsleep syz-fuzzer + 25047 172199 97313 0 3 0x10008a pause ksh + 97313 470341 49628 0 3 0x92 select sshd + 26148 337889 1 0 3 0x100083 ttyin getty + 49628 220902 1 0 3 0x80 select sshd + 13365 333692 4722 73 7 0x100010 syslogd + 4722 364223 1 0 3 0x100082 netio syslogd + 8296 330563 1 77 3 0x100090 poll dhclient + 95260 270278 1 0 3 0x80 poll dhclient + 89557 94184 0 0 3 0x14200 pgzero zerothread + 64715 61906 0 0 3 0x14200 aiodoned aiodoned + 25392 229747 0 0 3 0x14200 syncer update + 63748 85883 0 0 3 0x14200 cleaner cleaner +* 71 482899 0 0 7 0x14200 reaper + 56311 139753 0 0 3 0x14200 pgdaemon pagedaemon + 83328 272899 0 0 3 0x14200 bored crynlk + 2399 230600 0 0 3 0x14200 bored crypto + 36220 506735 0 0 3 0x40014200 acpi0 acpi0 + 717 437876 0 0 3 0x40014200 idle1 + 87882 394549 0 0 3 0x14200 bored softnet + 92791 451998 0 0 3 0x14200 bored systqmp + 43113 79354 0 0 3 0x14200 bored systq + 30693 248390 0 0 2 0x40014200 softclock + 29249 207353 0 0 3 0x40014200 idle0 + 1 427078 0 0 3 0x82 wait init + 0 0 -1 0 3 0x10200 scheduler swapper diff --git a/pkg/report/testdata/openbsd/report/12 b/pkg/report/testdata/openbsd/report/12 new file mode 100644 index 000000000..3d4f3a776 --- /dev/null +++ b/pkg/report/testdata/openbsd/report/12 @@ -0,0 +1,255 @@ +TITLE: witness: userret: returning with the following locks held: + +witness: userret: returning with the following locks held: +exclusive rrwlock inode r = 0 (0xfffffd8073b751b8) locked @ /syzkaller/managers/setuid/kernel/sys/ufs/ufs/ufs_vnops.c:1547 +panic: witness_warn +Stopped at db_enter+0x18: addq $0x8,%rsp + TID PID UID PRFLAGS PFLAGS CPU COMMAND +*251133 27091 32767 0x1010 0x4080000 0 syz-executor0 + 157746 84579 73 0x100010 0 1K syslogd +db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399 +panic() at panic+0x16c sys/kern/subr_prf.c:208 +witness_warn(ee1bd254b7968c41,0,ffff800020b932d8) at witness_warn+0x700 witness_debugger sys/kern/subr_witness.c:2549 [inline] +witness_warn(ee1bd254b7968c41,0,ffff800020b932d8) at witness_warn+0x700 sys/kern/subr_witness.c:1465 +userret(d3ab1f60032e493c) at userret+0x361 sys/kern/kern_sig.c:1899 +syscall(1c5a82b64da0a9b3) at syscall+0x680 mi_syscall_return sys/sys/syscall_mi.h:122 [inline] +syscall(1c5a82b64da0a9b3) at syscall+0x680 sys/arch/amd64/amd64/trap.c:605 +Xsyscall(6,5,c,0,3,604501f7010) at Xsyscall+0x128 +end of kernel +end trace frame: 0x606a0a0db50, count: 9 +https://www.openbsd.org/ddb.html describes the minimum info required in bug +reports. Insufficient info makes it difficult to find and fix bugs. +ddb{0}> +ddb{0}> set $lines = 0 +ddb{0}> show panic +witness_warn +ddb{0}> trace +db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:399 +panic() at panic+0x16c sys/kern/subr_prf.c:208 +witness_warn(ee1bd254b7968c41,0,ffff800020b932d8) at witness_warn+0x700 witness_debugger sys/kern/subr_witness.c:2549 [inline] +witness_warn(ee1bd254b7968c41,0,ffff800020b932d8) at witness_warn+0x700 sys/kern/subr_witness.c:1465 +userret(d3ab1f60032e493c) at userret+0x361 sys/kern/kern_sig.c:1899 +syscall(1c5a82b64da0a9b3) at syscall+0x680 mi_syscall_return sys/sys/syscall_mi.h:122 [inline] +syscall(1c5a82b64da0a9b3) at syscall+0x680 sys/arch/amd64/amd64/trap.c:605 +Xsyscall(6,5,c,0,3,604501f7010) at Xsyscall+0x128 +end of kernel +end trace frame: 0x606a0a0db50, count: -6 +ddb{0}> show registers +rdi 0xffffffff810e9c37 db_enter+0x17 +rsi 0x6269 __ALIGN_SIZE+0x5269 +rbp 0xffff800020c513c0 +rbx 0xffff800020c51460 +rdx 0x626a __ALIGN_SIZE+0x526a +rcx 0xffff800000946000 +rax 0xffff800000946000 +r8 0xffffffff81928b04 kprintf+0x174 +r9 0x1 +r10 0xa34a7cdce1818e59 +r11 0x3b33d273920fa037 +r12 0x3000000008 +r13 0xffff800020c513d0 +r14 0x100 +r15 0x1 +rip 0xffffffff810e9c38 db_enter+0x18 +cs 0x8 +rflags 0x246 +rsp 0xffff800020c513b0 +ss 0x10 +db_enter+0x18: addq $0x8,%rsp +ddb{0}> show proc +PROC (syz-executor0) pid=251133 stat=onproc + flags process=1010<SUGID,SINGLEEXIT> proc=4080000<SUSPSINGLE,THREAD> + pri=32, usrpri=86, nice=20 + forw=0xffffffffffffffff, list=0xffff800020b93080,0xffffffff822ddd20 + process=0xffff800020bcb3c8 user=0xffff800020c4c000, vmspace=0xfffffd807f00c708 + estcpu=36, cpticks=3, pctcpu=0.0 + user=0, sys=2, intr=0 +ddb{0}> ps + PID TID PPID UID S FLAGS WAIT COMMAND + 27091 103023 94283 32767 3 0x3010 suspend syz-executor0 +*27091 251133 94283 32767 7 0x4081010 syz-executor0 + 94283 91235 8847 32767 2 0x490 syz-executor0 + 8847 134468 27617 0 3 0x82 wait syz-executor0 + 89194 255199 23793 32767 2 0x490 syz-executor1 + 23793 347356 27617 0 3 0x82 wait syz-executor1 + 35391 764 0 0 3 0x14200 bored sosplice + 27617 26143 8513 0 3 0x82 thrsleep syz-fuzzer + 27617 139140 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 122079 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 425982 8513 0 3 0x4000082 kqread syz-fuzzer + 27617 185583 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 8988 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 76596 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 202898 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 107805 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 232014 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 375055 8513 0 3 0x4000082 thrsleep syz-fuzzer + 27617 513108 8513 0 3 0x4000082 thrsleep syz-fuzzer + 8513 255887 51961 0 3 0x10008a pause ksh + 51961 480736 5882 0 3 0x92 select sshd + 41789 127943 1 0 3 0x100083 ttyin getty + 5882 521725 1 0 3 0x80 select sshd + 84579 157746 64863 73 7 0x100010 syslogd + 64863 461484 1 0 3 0x100082 netio syslogd + 34963 239248 1 77 3 0x100090 poll dhclient + 87956 127332 1 0 3 0x80 poll dhclient + 6682 34952 0 0 3 0x14200 pgzero zerothread + 79223 492404 0 0 3 0x14200 aiodoned aiodoned + 91668 429494 0 0 3 0x14200 syncer update + 1716 278759 0 0 3 0x14200 cleaner cleaner + 48992 15597 0 0 3 0x14200 reaper reaper + 10653 200835 0 0 3 0x14200 pgdaemon pagedaemon + 70510 403053 0 0 3 0x14200 bored crynlk + 83402 131060 0 0 3 0x14200 bored crypto + 29106 114007 0 0 3 0x40014200 acpi0 acpi0 + 28331 200089 0 0 3 0x40014200 idle1 + 65079 127601 0 0 3 0x14200 bored softnet + 64490 88709 0 0 3 0x14200 bored systqmp + 86044 222202 0 0 3 0x14200 bored systq + 11355 154498 0 0 2 0x40014200 softclock + 86972 350113 0 0 3 0x40014200 idle0 + 1 253603 0 0 3 0x82 wait init + 0 0 -1 0 3 0x10200 scheduler swapper +ddb{0}> show all locks +Process 27091 (syz-executor0) thread 0xffff800020b932d8 (251133) +exclusive rrwlock inode r = 0 (0xfffffd8073b751b8) locked @ /syzkaller/managers/setuid/kernel/sys/ufs/ufs/ufs_vnops.c:1547 +Process 84579 (syslogd) thread 0xffff800020be4970 (157746) +exclusive kernel_lock &kernel_lock r = 0 (0xffffffff822fe250) locked @ /syzkaller/managers/setuid/kernel/sys/kern/sched_bsd.c:429 +exclusive rrwlock inode r = 0 (0xfffffd806eb9a098) locked @ /syzkaller/managers/setuid/kernel/sys/ufs/ufs/ufs_vnops.c:1547 +ddb{0}> show malloc + Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim + devbuf 9461 6321K 6321K 78643K 11093 0 0 + pcb 23 9K 11K 78643K 2367 0 0 + rtable 97 3K 3K 78643K 3655 0 0 + ifaddr 36 12K 12K 78643K 702 0 0 + counters 39 33K 33K 78643K 39 0 0 + ioctlops 0 0K 2K 78643K 141 0 0 + iov 0 0K 24K 78643K 293 0 0 + mount 1 1K 1K 78643K 1 0 0 + vnodes 1201 75K 75K 78643K 4454 0 0 + UFS quota 1 32K 32K 78643K 1 0 0 + UFS mount 5 36K 36K 78643K 5 0 0 + shm 2 1K 5K 78643K 64 0 0 + VM map 2 1K 1K 78643K 2 0 0 + sem 12 0K 0K 78643K 377 0 0 + dirhash 12 2K 2K 78643K 12 0 0 + ACPI 1792 194K 288K 78643K 12592 0 0 + file desc 7 21K 33K 78643K 4591 0 0 + sigio 0 0K 0K 78643K 70 0 0 + proc 41 38K 70K 78643K 3037 0 0 + subproc 68 69634K 69634K 78643K 3774 0 0 + NFS srvsock 1 0K 0K 78643K 1 0 0 + NFS daemon 1 16K 16K 78643K 1 0 0 + ip_moptions 0 0K 0K 78643K 638 0 0 + in_multi 33 2K 2K 78643K 1380 0 0 + ether_multi 1 0K 0K 78643K 32 0 0 + ISOFS mount 1 32K 32K 78643K 1 0 0 + MSDOSFS mount 1 16K 16K 78643K 1 0 0 + ttys 66 291K 291K 78643K 66 0 0 + exec 0 0K 1K 78643K 959 0 0 + pagedep 1 8K 8K 78643K 1 0 0 + inodedep 1 32K 32K 78643K 1 0 0 + newblk 1 0K 0K 78643K 1 0 0 + VM swap 7 26K 26K 78643K 7 0 0 + UVM amap 99 21K 212K 78643K 14947 0 0 + UVM aobj 130 6K 6K 78643K 144 0 0 + memdesc 1 4K 4K 78643K 1 0 0 + crypto data 1 1K 1K 78643K 1 0 0 + ip6_options 0 0K 0K 78643K 114 0 0 + NDP 5 0K 0K 78643K 336 0 0 + temp 121 2362K 2432K 78643K 19799 0 0 + kqueue 0 0K 0K 78643K 67 0 0 + SYN cache 2 16K 16K 78643K 2 0 0 +ddb{0}> show all pools +Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle +arp 64 113 0 109 1 0 1 1 0 8 0 +inpcbpl 280 1999 0 1992 1 0 1 1 0 8 0 +plimitpl 152 275 0 266 1 0 1 1 0 8 0 +plcache 128 20 0 0 1 0 1 1 0 8 0 +rtentry 112 1022 0 982 2 0 2 2 0 8 0 +syncache 264 4 0 4 1 1 0 1 0 8 0 +tcpqe 32 11 0 11 1 1 0 1 0 8 0 +tcpcb 544 760 0 756 1 0 1 1 0 8 0 +nd6 48 222 0 218 1 0 1 1 0 8 0 +art_heap8 4096 1 0 0 1 0 1 1 0 8 0 +art_heap4 256 4798 0 4606 13 1 12 13 0 8 0 +art_table 32 4799 0 4606 2 0 2 2 0 8 0 +art_node 16 1021 0 987 1 0 1 1 0 8 0 +sysvmsgpl 40 27 0 25 2 1 1 1 0 8 0 +semupl 112 1 0 1 1 1 0 1 0 8 0 +semapl 112 375 0 365 1 0 1 1 0 8 0 +shmpl 112 142 0 14 4 0 4 4 0 8 0 +dirhash 1024 17 0 0 3 0 3 3 0 8 0 +dino1pl 128 7334 0 5854 48 0 48 48 0 8 0 +ffsino 272 7334 0 5854 100 1 99 99 0 8 0 +nchpl 144 13626 0 12054 59 0 59 59 0 8 0 +uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 +vnodes 200 5926 0 0 312 0 312 312 0 8 0 +namei 1024 49442 0 49442 1 0 1 1 0 8 1 +percpumem 16 30 0 0 1 0 1 1 0 8 0 +scxspl 192 34249 0 34248 27 26 1 6 0 8 0 +sigapl 432 4431 0 4416 3 1 2 3 0 8 0 +futexpl 56 43242 0 43242 1 0 1 1 0 8 1 +knotepl 112 2967 0 2940 9 8 1 2 0 8 0 +kqueuepl 104 1267 0 1265 1 0 1 1 0 8 0 +pipepl 112 4062 0 4043 14 12 2 2 0 8 0 +fdescpl 488 4432 0 4416 3 0 3 3 0 8 0 +filepl 152 30141 0 30040 21 16 5 7 0 8 1 +lockfpl 96 934 0 934 5 4 1 1 0 8 1 +lockfspl 24 2251 0 2251 5 4 1 1 0 8 1 +sessionpl 112 126 0 116 1 0 1 1 0 8 0 +pgrppl 48 189 0 179 1 0 1 1 0 8 0 +ucredpl 96 10549 0 10540 1 0 1 1 0 8 0 +zombiepl 144 4417 0 4415 2 1 1 1 0 8 0 +processpl 840 4447 0 4415 4 0 4 4 0 8 0 +procpl 600 12304 0 12260 6 2 4 5 0 8 0 +srpgc 64 634 0 634 16 15 1 1 0 8 1 +sosppl 128 95 0 95 18 17 1 1 0 8 1 +sockpl 384 4473 0 4456 9 6 3 4 0 8 1 +mcl64k 65536 10 0 0 2 0 2 2 0 8 0 +mcl16k 16384 3 0 0 1 0 1 1 0 8 0 +mcl12k 12288 28 0 0 2 0 2 2 0 8 0 +mcl9k 9216 31 0 0 3 1 2 2 0 8 0 +mcl8k 8192 17 0 0 3 0 3 3 0 8 0 +mcl4k 4096 23 0 0 3 1 2 3 0 8 0 +mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 +mcl2k 2048 141 0 0 15 1 14 15 0 8 0 +mtagpl 80 1 0 0 1 0 1 1 0 8 0 +mbufpl 256 398 0 0 12 0 12 12 0 8 0 +bufpl 256 11227 0 4258 436 0 436 436 0 8 0 +anonpl 16 436438 0 430674 161 125 36 41 0 125 7 +amapchunkpl 152 35307 0 35219 210 205 5 189 0 158 0 +amappl16 192 22145 0 21863 151 130 21 27 0 8 5 +amappl15 184 701 0 700 1 0 1 1 0 8 0 +amappl14 176 914 0 910 2 1 1 1 0 8 0 +amappl13 168 326 0 323 1 0 1 1 0 8 0 +amappl12 160 652 0 646 1 0 1 1 0 8 0 +amappl11 152 1232 0 1220 1 0 1 1 0 8 0 +amappl10 144 245 0 241 1 0 1 1 0 8 0 +amappl9 136 966 0 962 1 0 1 1 0 8 0 +amappl8 128 1574 0 1527 3 1 2 2 0 8 0 +amappl7 120 365 0 355 1 0 1 1 0 8 0 +amappl6 112 742 0 726 1 0 1 1 0 8 0 +amappl5 104 728 0 716 1 0 1 1 0 8 0 +amappl4 96 1165 0 1142 2 1 1 2 0 8 0 +amappl3 88 525 0 520 1 0 1 1 0 8 0 +amappl2 80 37741 0 37683 2 0 2 2 0 8 0 +amappl1 72 118192 0 117743 30 21 9 19 0 8 0 +amappl 72 13370 0 13334 1 0 1 1 0 75 0 +dma4096 4096 1 0 1 1 1 0 1 0 8 0 +dma256 256 6 0 6 1 1 0 1 0 8 0 +dma64 64 259 0 259 1 1 0 1 0 8 0 +dma32 32 7 0 7 1 1 0 1 0 8 0 +dma16 16 17 0 17 1 1 0 1 0 8 0 +aobjpl 64 143 0 14 3 0 3 3 0 8 0 +uaddrrnd 24 4432 0 4416 1 0 1 1 0 8 0 +uaddrbest 32 2 0 0 1 0 1 1 0 8 0 +uaddr 24 4432 0 4416 1 0 1 1 0 8 0 +vmmpekpl 168 40509 0 40485 2 0 2 2 0 8 0 +vmmpepl 168 508159 0 506787 187 115 72 82 0 357 7 +vmsppl 360 4431 0 4416 2 0 2 2 0 8 0 +pdppl 4096 8871 0 8832 6 0 6 6 0 8 1 +pvpl 32 1261618 0 1252694 322 217 105 113 0 265 24 +pmappl 224 4431 0 4416 21 19 2 2 0 8 1 +extentpl 40 39 0 25 1 0 1 1 0 8 0 +phpool 112 599 0 6 17 0 17 17 0 8 0 |