bisecting cause commit starting from 34d4ddd359dbcdf6c5fb3f85a179243d7a1cb7f8 building syzkaller on 409809d8a7c9c775eaea317add40e7a86a1e836c testing commit 34d4ddd359dbcdf6c5fb3f85a179243d7a1cb7f8 with gcc (GCC) 8.1.0 kernel signature: 0738d56a836c1524f1068a1cd13794e58f00c6d2ea652350733f497fb27ecc62 all runs: crashed: WARNING in tracepoint_probe_register_prio testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: e0ed929450ca493f40e1bd2b2504089dab2ed795041fb1a7159c4f05a7650c4f all runs: OK # git bisect start 34d4ddd359dbcdf6c5fb3f85a179243d7a1cb7f8 bcf876870b95592b52519ed4aafcf9d95999bc9c Bisecting: 6640 revisions left to test after this (roughly 13 steps) [47ec5303d73ea344e84f46660fff693c57641386] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 47ec5303d73ea344e84f46660fff693c57641386 with gcc (GCC) 8.1.0 kernel signature: 56a84685d8c18ad8825cd77bd8e7a9b541d957ac4d4e4f84b31985a676960f2f all runs: crashed: WARNING in tracepoint_probe_register_prio # git bisect bad 47ec5303d73ea344e84f46660fff693c57641386 Bisecting: 4088 revisions left to test after this (roughly 12 steps) [8f7be6291529011a58856bf178f52ed5751c68ac] Merge tag 'mmc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc testing commit 8f7be6291529011a58856bf178f52ed5751c68ac with gcc (GCC) 8.1.0 kernel signature: e8039a50100ed5389a023dda6735808e9612fa7f7509b51109d49062fbe55fc6 all runs: crashed: WARNING in tracepoint_probe_register_prio # git bisect bad 8f7be6291529011a58856bf178f52ed5751c68ac Bisecting: 2031 revisions left to test after this (roughly 11 steps) [822ef14e9dc73079c646d33aa77e2ac42361b39e] Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 822ef14e9dc73079c646d33aa77e2ac42361b39e with gcc (GCC) 8.1.0 kernel signature: ed6a78ce78cbea0de50c3659e46673a4aed85876d9cb6738c6a5e27402c2b1ba all runs: OK # git bisect good 822ef14e9dc73079c646d33aa77e2ac42361b39e Bisecting: 982 revisions left to test after this (roughly 10 steps) [e0fc99e21e6e299673f1640105ac0c1d829c2d93] Merge tag 'for-5.9/drivers-20200803' of git://git.kernel.dk/linux-block testing commit e0fc99e21e6e299673f1640105ac0c1d829c2d93 with gcc (GCC) 8.1.0 kernel signature: 6b30f2410bdd9c838bc858d95776b02a40bd19a6d39f707f4eff07636f8edb5a all runs: crashed: WARNING in tracepoint_probe_register_prio # git bisect bad e0fc99e21e6e299673f1640105ac0c1d829c2d93 Bisecting: 521 revisions left to test after this (roughly 9 steps) [4f30a60aa78410496e5ffe632a371c00f0d83a8d] Merge tag 'close-range-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 4f30a60aa78410496e5ffe632a371c00f0d83a8d with gcc (GCC) 8.1.0 kernel signature: 75398130a2767172514d4acf8b36679d2ced657515e245d6baf8e37981e52e88 all runs: crashed: WARNING in tracepoint_probe_register_prio # git bisect bad 4f30a60aa78410496e5ffe632a371c00f0d83a8d Bisecting: 260 revisions left to test after this (roughly 8 steps) [b171373902b06d1b5a775de74178bf1527fee6cc] Merge tag 'spi-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi testing commit b171373902b06d1b5a775de74178bf1527fee6cc with gcc (GCC) 8.1.0 kernel signature: dffe679c9909e7b603f7dfdedb0dbb0935db167afd10d79311e9dc4051532f50 all runs: OK # git bisect good b171373902b06d1b5a775de74178bf1527fee6cc Bisecting: 128 revisions left to test after this (roughly 7 steps) [427714f258a3783b15e33d6daa34d57824f28bab] Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux testing commit 427714f258a3783b15e33d6daa34d57824f28bab with gcc (GCC) 8.1.0 kernel signature: 7b781b90634f52982a9c30fe653e2eeb5b5736cc560814bf3f904bec53487ccc all runs: OK # git bisect good 427714f258a3783b15e33d6daa34d57824f28bab Bisecting: 62 revisions left to test after this (roughly 6 steps) [fd76a74d940ae3d6b8b2395cd12914630c7e1739] Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit testing commit fd76a74d940ae3d6b8b2395cd12914630c7e1739 with gcc (GCC) 8.1.0 kernel signature: cd662d2862a11eff9ba20a39b10afedfb5758dafaddc69b5f5a3ea8632e5cf72 all runs: OK # git bisect good fd76a74d940ae3d6b8b2395cd12914630c7e1739 Bisecting: 31 revisions left to test after this (roughly 5 steps) [0a72761b27fe3b10e3f336bf2f2aa22635504cdd] Merge tag 'threads-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 0a72761b27fe3b10e3f336bf2f2aa22635504cdd with gcc (GCC) 8.1.0 kernel signature: 6fba2f7e4e4916c0c666400290c0aef8df991a60d5e025130d372b6b434849df all runs: OK # git bisect good 0a72761b27fe3b10e3f336bf2f2aa22635504cdd Bisecting: 15 revisions left to test after this (roughly 4 steps) [140c8180eb7c7cbda399f64474788b86db72db32] arch: remove HAVE_COPY_THREAD_TLS testing commit 140c8180eb7c7cbda399f64474788b86db72db32 with gcc (GCC) 8.1.0 kernel signature: 2a2b40a219da4516f297af59f693fe75f17c137a577886032f848c5cb33e0e22 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 140c8180eb7c7cbda399f64474788b86db72db32 Bisecting: 15 revisions left to test after this (roughly 4 steps) [dcad2a62bc7948342404217831233957e8f169cc] sparc64: enable HAVE_COPY_THREAD_TLS testing commit dcad2a62bc7948342404217831233957e8f169cc with gcc (GCC) 8.1.0 kernel signature: d0ba5d80cc596bed2c48eeca751af254ad4b40c165d1244aa4c729ed21bb94af all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip dcad2a62bc7948342404217831233957e8f169cc Bisecting: 15 revisions left to test after this (roughly 4 steps) [e0daa22c292b5835a946716b9a2092b30c7d9d31] c6x: switch to copy_thread_tls() testing commit e0daa22c292b5835a946716b9a2092b30c7d9d31 with gcc (GCC) 8.1.0 kernel signature: 38147048745d742be46bfe7dd4e4086ae6f58bc99d1cbe9c09d9e60ce719b681 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip e0daa22c292b5835a946716b9a2092b30c7d9d31 Bisecting: 15 revisions left to test after this (roughly 4 steps) [9b4feb630e8e9801603f3cab3a36369e3c1cf88d] arch: wire-up close_range() testing commit 9b4feb630e8e9801603f3cab3a36369e3c1cf88d with gcc (GCC) 8.1.0 kernel signature: 956e556d6f9470744cd9faa103e5eb37018654adba7d1f3e95c0631dfddcf39d all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks # git bisect skip 9b4feb630e8e9801603f3cab3a36369e3c1cf88d Bisecting: 15 revisions left to test after this (roughly 4 steps) [643d48b8e6e71a77214c8653003f2ecd9bc10f9e] hexagon: switch to copy_thread_tls() testing commit 643d48b8e6e71a77214c8653003f2ecd9bc10f9e with gcc (GCC) 8.1.0 kernel signature: c29f5bd819d5abbbbe9f86c1b608e5886902ab0d6ed767de4f7e77d463a88e87 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 643d48b8e6e71a77214c8653003f2ecd9bc10f9e Bisecting: 15 revisions left to test after this (roughly 4 steps) [b9a3db92e1a1f281724e2f34b849d18d1a53bece] pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid testing commit b9a3db92e1a1f281724e2f34b849d18d1a53bece with gcc (GCC) 8.1.0 kernel signature: 8b3dc123b66755617643d2c8888e406daadd4e7e00ebe84e2df7960a8a0bf319 all runs: OK # git bisect good b9a3db92e1a1f281724e2f34b849d18d1a53bece Bisecting: 14 revisions left to test after this (roughly 4 steps) [15350c4226c7a3cdce4f2feb0fb96ed0986cf9a5] sh: switch to copy_thread_tls() testing commit 15350c4226c7a3cdce4f2feb0fb96ed0986cf9a5 with gcc (GCC) 8.1.0 kernel signature: 251aa2de0c4bc70555ce1830d811d088c7140db1bcbc18bf6a1929d455a81c96 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 15350c4226c7a3cdce4f2feb0fb96ed0986cf9a5 Bisecting: 14 revisions left to test after this (roughly 4 steps) [2c5db60e46ad7f03789fe7e2beedb15496930468] tests: add close_range() tests testing commit 2c5db60e46ad7f03789fe7e2beedb15496930468 with gcc (GCC) 8.1.0 kernel signature: dfd5ea4574a5e5dcec9066b9b2452a73723a3ce3c9fec16ef624c69a18dcdabc all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks # git bisect skip 2c5db60e46ad7f03789fe7e2beedb15496930468 Bisecting: 14 revisions left to test after this (roughly 4 steps) [ad1bb82c057ecebfdb0b619e023c57b425ef7e7e] microblaze: switch to copy_thread_tls() testing commit ad1bb82c057ecebfdb0b619e023c57b425ef7e7e with gcc (GCC) 8.1.0 kernel signature: 4f1eb6b8e136e2d63225453bbd54b25973ef30aeeae8139ab66a6f6e0d6aeb72 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip ad1bb82c057ecebfdb0b619e023c57b425ef7e7e Bisecting: 14 revisions left to test after this (roughly 4 steps) [227175b2c914bfa4a9aa5b210c7cabd42c5858ac] prctl: exe link permission error changed from -EINVAL to -EPERM testing commit 227175b2c914bfa4a9aa5b210c7cabd42c5858ac with gcc (GCC) 8.1.0 kernel signature: dcde23ad24424ec3cfbe4bb6a017ac0853a90bd9ae04a58a615855a4110c9d89 run #0: boot failed: can't ssh into the instance run #1: OK run #2: boot failed: can't ssh into the instance run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 227175b2c914bfa4a9aa5b210c7cabd42c5858ac Bisecting: 12 revisions left to test after this (roughly 4 steps) [1dd966ea63f46b82ae9e367de22e3f8c70450fd5] nds32: switch to copy_thread_tls() testing commit 1dd966ea63f46b82ae9e367de22e3f8c70450fd5 with gcc (GCC) 8.1.0 kernel signature: 4c6acdd2e3a8fae78432821e9bc9d362a297235a5d8a7656e271af19089ceace all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 1dd966ea63f46b82ae9e367de22e3f8c70450fd5 Bisecting: 12 revisions left to test after this (roughly 4 steps) [60997c3d45d9a67daf01c56d805ae4fec37e0bd8] close_range: add CLOSE_RANGE_UNSHARE testing commit 60997c3d45d9a67daf01c56d805ae4fec37e0bd8 with gcc (GCC) 8.1.0 kernel signature: 593eb4f547086bfdda9a3dcd847b3bc7e8d844801ca237fa16ed17f77caf7cf3 all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks # git bisect skip 60997c3d45d9a67daf01c56d805ae4fec37e0bd8 Bisecting: 12 revisions left to test after this (roughly 4 steps) [0fdfc53f24cc460e93de57c014bc6e5460755073] alpha: switch to copy_thread_tls() testing commit 0fdfc53f24cc460e93de57c014bc6e5460755073 with gcc (GCC) 8.1.0 kernel signature: 69d9ccb278b749c841d288c0b3281653ca27ee8bdfc7b3caf3d51a793b964386 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 0fdfc53f24cc460e93de57c014bc6e5460755073 Bisecting: 12 revisions left to test after this (roughly 4 steps) [ddb815bd5459016ff641c504f42e0d7dd8c45aff] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args testing commit ddb815bd5459016ff641c504f42e0d7dd8c45aff with gcc (GCC) 8.1.0 kernel signature: d2577a3f1ad8e009f0bb2da185ac167a6abf2178b1e7dd3da8c80b3e2ecb580e all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip ddb815bd5459016ff641c504f42e0d7dd8c45aff Bisecting: 12 revisions left to test after this (roughly 4 steps) [8496da092a5350cfcc1d9c518712e7b1b3848f18] unicore: switch to copy_thread_tls() testing commit 8496da092a5350cfcc1d9c518712e7b1b3848f18 with gcc (GCC) 8.1.0 kernel signature: ad334fc7b00324e06618dda96ed328f6bf18cd0d3c166317e30629f4314ec967 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 8496da092a5350cfcc1d9c518712e7b1b3848f18 Bisecting: 12 revisions left to test after this (roughly 4 steps) [a5161eeef97cb0cdc4de966005926db2f5894af4] tests: add CLOSE_RANGE_UNSHARE tests testing commit a5161eeef97cb0cdc4de966005926db2f5894af4 with gcc (GCC) 8.1.0 kernel signature: 1c22a10370f6e05e92024eeb4544656e1923e4fbc259ecd89f07ab02d304673f all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks # git bisect skip a5161eeef97cb0cdc4de966005926db2f5894af4 Bisecting: 12 revisions left to test after this (roughly 4 steps) [714acdbd1c94e7e3ab90f6b6938f1ccb27b662f0] arch: rename copy_thread_tls() back to copy_thread() testing commit 714acdbd1c94e7e3ab90f6b6938f1ccb27b662f0 with gcc (GCC) 8.1.0 kernel signature: 69acfb206a7b2fa18ba5f21c01b0986cedc69e902278f099e0bf00c7c4cf506d all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 714acdbd1c94e7e3ab90f6b6938f1ccb27b662f0 Bisecting: 12 revisions left to test after this (roughly 4 steps) [7694f5143bbe2e2d08216eaee7c62c9d39252889] sparc: unconditionally enable HAVE_COPY_THREAD_TLS testing commit 7694f5143bbe2e2d08216eaee7c62c9d39252889 with gcc (GCC) 8.1.0 kernel signature: 7065353ca5257d7dccd044c721942b66bd20ffcaec6ef158061ae4ac32bc6b35 all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call # git bisect skip 7694f5143bbe2e2d08216eaee7c62c9d39252889 Bisecting: 12 revisions left to test after this (roughly 4 steps) [9ba27414f2ec2bfb019d9e9170fd2308aebab63a] Merge tag 'fork-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 9ba27414f2ec2bfb019d9e9170fd2308aebab63a with gcc (GCC) 8.1.0 kernel signature: 28aa80e34a82e8ca10cc780a9f4f8ffd07a903376b3ea3c04e1edb5a9585d2d6 all runs: OK # git bisect good 9ba27414f2ec2bfb019d9e9170fd2308aebab63a Bisecting: 3 revisions left to test after this (roughly 2 steps) [74858abbb1032222f922487fd1a24513bbed80f9] Merge tag 'cap-checkpoint-restore-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 74858abbb1032222f922487fd1a24513bbed80f9 with gcc (GCC) 8.1.0 kernel signature: 6428a41e45710beda7d347a8c8cafc1d856c2ca76be6886357f02eda90cad71d all runs: OK # git bisect good 74858abbb1032222f922487fd1a24513bbed80f9 Bisecting: 2 revisions left to test after this (roughly 2 steps) [278a5fbaed89dacd04e9d052f4594ffd0e0585de] open: add close_range() testing commit 278a5fbaed89dacd04e9d052f4594ffd0e0585de with gcc (GCC) 8.1.0 kernel signature: a021c9da5ec8180067af6fb50c82d6b4604e091e681e89e819f77dd7c7283db9 all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks # git bisect skip 278a5fbaed89dacd04e9d052f4594ffd0e0585de There are only 'skip'ped commits left to test. The first bad commit could be any of: 2c5db60e46ad7f03789fe7e2beedb15496930468 60997c3d45d9a67daf01c56d805ae4fec37e0bd8 9b4feb630e8e9801603f3cab3a36369e3c1cf88d 278a5fbaed89dacd04e9d052f4594ffd0e0585de a5161eeef97cb0cdc4de966005926db2f5894af4 4f30a60aa78410496e5ffe632a371c00f0d83a8d We cannot bisect more! revisions tested: 32, total time: 5h56m29.486781648s (build: 3h0m14.890144608s, test: 2h54m0.83206691s) bisection is inconclusive, the first bad commit could be any of: 2c5db60e46ad7f03789fe7e2beedb15496930468 60997c3d45d9a67daf01c56d805ae4fec37e0bd8 9b4feb630e8e9801603f3cab3a36369e3c1cf88d 278a5fbaed89dacd04e9d052f4594ffd0e0585de a5161eeef97cb0cdc4de966005926db2f5894af4 4f30a60aa78410496e5ffe632a371c00f0d83a8d