LTP mm mtest05 (mmstress), mtest06_3 and mallocstress01 (mallocstress) tested on x86 KASAN enabled build. But tests are getting PASS on Non KASAN builds. This regression started happening from next-20201015 nowards There are few more regression on linux next, ltp-cve-tests: * cve-2015-7550 ltp-math-tests: * float_bessel * float_exp_log * float_iperb * float_power * float_trigo ltp-mm-tests: * mallocstress01 * mtest05 * mtest06_3 ltp-syscalls-tests: * clone08 * clone301 * fcntl34 * fcntl34_64 * fcntl36 * fcntl36_64 * keyctl02 * rt_tgsigqueueinfo01 metadata: git branch: master git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next git describe: next-20201015 kernel-config: https://builds.tuxbuild.com/SCI7Xyjb7V2NbfQ2lbKBZw/kernel.config steps to reproduce: # boot x86_64 with KASAN enabled kernel and run tests # cd /opt/ltp/testcases/bin # ./mmstress # ./mmap3 -x 0.002 -p # ./mallocstress mtest05 (mmstress) : -------------------- mmstress 0 TINFO : run mmstress -h for all options mmstress 0 TINFO : test1: Test case tests the race condition between simultaneous read faults in the same address space. [ 279.469207] mmstress[1309]: segfault at 7f3d71a36ee8 ip 00007f3d77132bdf sp 00007f3d71a36ee8 error 4 in libc-2.27.so[7f3d77058000+1aa000] [ 279.469305] audit: type=1701 audit(1602818315.656:3): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1307 comm=\"mmstress\" exe=\"/opt/ltp/testcases/bin/mmstress\" sig=11 res=1 [ 279.481636] Code: 2d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 18 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 <c3> 48 8b 0d 91 22 2d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f [ 279.498212] mmstress[1311]: segfault at 7f3d70a34ee8 ip 00007f3d77132bdf sp 00007f3d70a34ee8 error 4 in libc-2.27.so[7f3d77058000+1aa000] [ 279.516839] Code: 2d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 18 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 <c3> 48 8b 0d 91 22 2d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f tst_test.c:1246: INFO: Timeout per run is 0h 15m 00s tst_test.c:1246: INFO: Timeout per run is 0h 09m 00s tst_test.c:1291: BROK: Test killed by SIGBUS! mtest06_3 (mmap3 -x 0.002 -p) : ------------------------------- mmap3.c:154: INFO: Seed 22 mmap3.c:155: INFO: Number of loops 1000 mmap3.c:156: INFO: Number of threads 40 mmap3.c:157: INFO: MAP[ 286.657788] mmap3[1350]: segfault at 7f12179d4680 ip 00007f121859951d sp 00007f12179d1e10 error 6 in libpthread-2.27.so[7f1218589000+19000] _PRIVATE = 1 mm[ 286.671184] Code: c4 10 5b 5d 41 5c c3 66 0f 1f 44 00 00 48 8b 15 99 8a 20 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 48 8b 15 85 8a 20 00 f7 d8 <64> 89 02 48 c7 c0 ff ff ff ff eb b6 0f 1f 80 00 00 00 00 b8 01 00 [ 286.677386] audit: type=1701 audit(1602818322.844:6): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1348 comm=\"mmap3\" exe=\"/opt/ltp/testcases/bin/mmap3\" sig=11 res=1 ap3.c:158: INFO: Execution time 0.002000H mallocstress01 (mallocstress) : ------------------------------ pid[1496]: shmat_rd_wr(): shmget():success got segment id 32830 pid[1496]: do_shmat_shmadt(): got shmat address = 0x7f301eae9000 pid[1496]: shmat_rd_wr(): shmget():success got segment id 328[ 291.851376] mallocstress[1502]: segfault at 0 ip 0000000000000000 sp 00007f80dea3ec50 error 14 30 pid[1496]: d[ 291.851466] mallocstress[1507]: segfault at 7f80dc239c98 ip 00007f80df2bf81c sp 00007f80dc239c98 error 4 o_shmat_shmadt()[ 291.851485] mallocstress[1505]: segfault at 7f80dd23bc38 ip 00007f80df33fe93 sp 00007f80dd23bc38 error 4 [ 291.851490] Code: 00 00 00 00 0f 1f 00 41 52 52 4d 31 d2 ba 02 00 00 00 be 80 00 00 00 39 d0 75 07 b8 ca 00 00 00 0f 05 89 d0 87 07 85 c0 75 f1 <5a> 41 5a c3 66 0f 1f 84 00 00 00 00 00 56 52 c7 07 00 00 00 00 be : got shmat addr[ 291.851565] audit: type=1701 audit(1602818328.038:7): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1500 comm=\"mallocstress\" exe=\"/opt/ltp/testcases/bin/mallocstress\" sig=11 res=1 [ 291.852984] mallocstress[1504]: segfault at 7f80dda3cc38 ip 00007f80df33fe93 sp 00007f80dda3cc38 error 4 ess = 0x7f301e85[ 291.852988] Code: 00 00 00 00 0f 1f 00 41 52 52 4d 31 d2 ba 02 00 00 00 be 80 00 00 00 39 d0 75 07 b8 ca 00 00 00 0f 05 89 d0 87 07 85 c0 75 f1 <5a> 41 5a c3 66 0f 1f 84 00 00 00 00 00 56 52 c7 07 00 00 00 00 be [ 291.853045] audit: type=1701 audit(1602818328.040:8): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1500 comm=\"mallocstress\" exe=\"/opt/ltp/testcases/bin/mallocstress\" sig=11 res=1 5000 tst_test.c[ 291.860373] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. [ 291.860453] mallocstress[1506]: segfault at 7f80dca3ac98 ip 00007f80df2bf81c sp 00007f80dca3ac98 error 4 :1246: INFO: Tim[ 291.860654] audit: type=1701 audit(1602818328.047:9): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1500 comm=\"mallocstress\" exe=\"/opt/ltp/testcases/bin/mallocstress\" sig=11 res=1 [ 291.871350] eout per run is [ 291.871397] mallocstress[1501]: segfault at 0 ip 0000000000000000 sp 00007f80df23fc50 error 14 [ 291.871401] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6. 0h 30m 00s [ 291.871467] audit: type=1701 audit(1602818328.058:10): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=1500 comm=\"mallocstress\" exe=\"/opt/ltp/testcases/bin/mallocstress\" sig=11 res=1 [ 291.882113] in libc-2.27.so[7f80df241000+1aa000] [ 291.900984] Code: ff 48 85 c0 75 d8 0f 1f 84 00 00 00 00 00 8b 35 26 11 33 00 48 83 c1 10 85 f6 0f 85 42 01 00 00 48 81 c4 88 00 00 00 48 89 c8 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 66 0f 1f 84 00 00 00 00 00 4c 8b [ 291.919351] Code: ff 48 85 c0 75 d8 0f 1f 84 00 00 00 00 00 8b 35 26 11 33 00 48 83 c1 10 85 f6 0f 85 42 01 00 00 48 81 c4 88 00 00 00 48 89 c8 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 66 0f 1f 84 00 00 00 00 00 4c 8b Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> full test log link, https://lkft.validation.linaro.org/scheduler/job/1844090 -- Linaro LKFT https://lkft.linaro.org