ci2 starts bisection 2025-06-28 07:17:29.975112955 +0000 UTC m=+33249.681033733 bisecting fixing commit since 98f47d0e9b8c557d3063d3ea661cbea1489af330 building syzkaller on 3d2f584ddab119da50e8a8d26765aa98d3b33c02 ensuring issue is reproducible on original commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c9707ccdf90d1bac83677975ba8c1fdd032e2147bbb895cf425a86163b62176 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d45e8648df87ff13d523de0aeecd29718cd9b5057592c6727572fdbb58d3b34 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed kconfig minimization: base=3707 full=7306 leaves diff=2040 split chunks (needed=false): <2040> split chunk #0 of len 2040 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6a3acd745758056eb956895b66023fbb55cc18e31edf722e92e731caaf11843 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: baa0aaa8c97e9373ee200939716978413a5d1cae2b13edb5b6d84be7a93cdfa6 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c4de7ddef73d03f9807916b86198b85141a189ee2a034a15c7e5c3dd5a0aef27 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 663eea62207321a6396c7ace5ba9e9fbe786df76bc3bf0308401b81669db3718 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 98f47d0e9b8c557d3063d3ea661cbea1489af330 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c77c7d1e417e1cb703e98decc074711abf2e396885740329b39619e89b5a144 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] the chunk can be dropped disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed determining the merge base between 98f47d0e9b8c557d3063d3ea661cbea1489af330 and aaf724ed69264719550ec4f194d3ab17b886af9a 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 285665b2cef0231baec2cbdb05eb5894297d3b2391d6e7ced777d885fc7e7986 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] testing current HEAD aaf724ed69264719550ec4f194d3ab17b886af9a testing commit aaf724ed69264719550ec4f194d3ab17b886af9a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 26995b5f3bf7d86ada04ebd703950cbfab87bc78c1486a706a3e9eeb403c3290 all runs: OK false negative chance: 0.000 # git bisect start aaf724ed69264719550ec4f194d3ab17b886af9a 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 161743 revisions left to test after this (roughly 17 steps) [b96a3e9142fdf346b05b20e867b4f0dfca119e96] Merge tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit b96a3e9142fdf346b05b20e867b4f0dfca119e96 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 413507857ff15d1aefe3a353aa2e3e6f54b138a812be60c57a197a3418cb87cf all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good b96a3e9142fdf346b05b20e867b4f0dfca119e96 Bisecting: 81175 revisions left to test after this (roughly 16 steps) [280e36f0d5b997173d014c07484c03a7f7750668] nsfs: use cleanup guard determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 280e36f0d5b997173d014c07484c03a7f7750668 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 208e78f033b5f834d5a79b03d5436f8810a7ef70f6f16b063e00d533e2abba52 all runs: OK false negative chance: 0.000 # git bisect bad 280e36f0d5b997173d014c07484c03a7f7750668 Bisecting: 40293 revisions left to test after this (roughly 15 steps) [296455ade1fdcf5f8f8c033201633b60946c589a] Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 296455ade1fdcf5f8f8c033201633b60946c589a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d41d64cbfa71963d320bb5667dd59de3df3a474299a9597e6b9fd054ee5e1b88 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 296455ade1fdcf5f8f8c033201633b60946c589a Bisecting: 20135 revisions left to test after this (roughly 14 steps) [0208ca55aa9c9b997da1f5bc45c4e98916323f08] Backmerge tag 'v6.9-rc5' into drm-next determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 0208ca55aa9c9b997da1f5bc45c4e98916323f08 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: c02c1c5b06d31d65983c6ff005bb33e7b279bbc131f0ec10415c24bbe55c3730 all runs: OK false negative chance: 0.000 # git bisect bad 0208ca55aa9c9b997da1f5bc45c4e98916323f08 Bisecting: 10047 revisions left to test after this (roughly 13 steps) [61387b8dcf1dc0f30cf690956a48768a3fce1810] Merge tag 'for-6.9/dm-vdo' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 61387b8dcf1dc0f30cf690956a48768a3fce1810 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ad0ab1cbd12f6c258d5121b399ee53f8b54359ef690ff1d079f5da2cf26d4973 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 61387b8dcf1dc0f30cf690956a48768a3fce1810 Bisecting: 5008 revisions left to test after this (roughly 12 steps) [ab522e1478e3191114535f454a1c41ba3b2d1cb9] Merge tag 'devicetree-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit ab522e1478e3191114535f454a1c41ba3b2d1cb9 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 8ae7ce9c8b39baf727af179dd2d452b3b70afc38daeff2fe3b3e25de98a23856 all runs: OK false negative chance: 0.000 # git bisect bad ab522e1478e3191114535f454a1c41ba3b2d1cb9 Bisecting: 2527 revisions left to test after this (roughly 11 steps) [480e035fc4c714fb5536e64ab9db04fedc89e910] Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b682a8255adb3bff3a4618950324ace850e5f8b89196f2043f624da46e559fde all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 480e035fc4c714fb5536e64ab9db04fedc89e910 Bisecting: 1324 revisions left to test after this (roughly 10 steps) [1bbeaf83dd7b5e3628b98bec66ff8fe2646e14aa] Merge tag 'perf-tools-for-v6.9-2024-03-13' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit 1bbeaf83dd7b5e3628b98bec66ff8fe2646e14aa gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b93407e9bc168521868ce893e68c736b33b9e1d0d97e81a9d752a352d3dade79 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 1bbeaf83dd7b5e3628b98bec66ff8fe2646e14aa Bisecting: 656 revisions left to test after this (roughly 9 steps) [68bf6bfdcf56b5e6567a668ffc15d5e449356c02] Merge tag 'ext4_for_linus-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 determine whether the revision contains the guilty commit revision b96a3e9142fdf346b05b20e867b4f0dfca119e96 crashed and is reachable testing commit 68bf6bfdcf56b5e6567a668ffc15d5e449356c02 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: cb8867b8dd7af3bb380a039f69106b2e4ae116856de3ba479fadceb4a25e2727 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 68bf6bfdcf56b5e6567a668ffc15d5e449356c02 Bisecting: 353 revisions left to test after this (roughly 8 steps) [eb7cca1faf9883d7b4da792281147dbedc449238] Merge tag 'media/v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision b96a3e9142fdf346b05b20e867b4f0dfca119e96 crashed and is reachable testing commit eb7cca1faf9883d7b4da792281147dbedc449238 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: cbd085f15d1b9a3b34378b8f56525071fa7becedcb1f30b3d626d403872e9427 all runs: OK false negative chance: 0.000 # git bisect bad eb7cca1faf9883d7b4da792281147dbedc449238 Bisecting: 151 revisions left to test after this (roughly 7 steps) [9b71021b2ea537632b01e51e3f003df24a637858] media: nxp: imx8-isi: Mark all crossbar sink pads as MUST_CONNECT determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit 9b71021b2ea537632b01e51e3f003df24a637858 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: acb28ebcff640e892f5278e8337b49b50ae7de707ec6b278843c887ff248b039 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 9b71021b2ea537632b01e51e3f003df24a637858 Bisecting: 75 revisions left to test after this (roughly 6 steps) [6fc62efa266b0918c7b226f45c2eccfcf99a6d8e] media: i2c: imx290: Fix IMX920 typo determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit 6fc62efa266b0918c7b226f45c2eccfcf99a6d8e gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d6c4a0f2d65f5db9cae473d608c99b41e06ef0bb69742690225a0ed087203fe3 all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 6fc62efa266b0918c7b226f45c2eccfcf99a6d8e Bisecting: 37 revisions left to test after this (roughly 5 steps) [cdf6ac2a03d253f05d3e798f60f23dea1b176b92] fuse: get rid of ff->readdir.lock determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit cdf6ac2a03d253f05d3e798f60f23dea1b176b92 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 455385ecc9d4e9306de56adc729004e471a801c50d318b9172cf1ad41b8174df all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good cdf6ac2a03d253f05d3e798f60f23dea1b176b92 Bisecting: 18 revisions left to test after this (roughly 4 steps) [8796f3357f767da75b46fe9cc957546f458f4502] media: ti: j721e-csi2rx: Convert to platform remove callback returning void determine whether the revision contains the guilty commit revision 6fc62efa266b0918c7b226f45c2eccfcf99a6d8e crashed and is reachable testing commit 8796f3357f767da75b46fe9cc957546f458f4502 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 6b0dc15a27e0e8cb90bde0c12d67447fcd76fe8eb3667193b6a4b62f4e55380b all runs: crashed: INFO: task hung in __fdget_pos representative crash: INFO: task hung in __fdget_pos, types: [HANG] # git bisect good 8796f3357f767da75b46fe9cc957546f458f4502 Bisecting: 8 revisions left to test after this (roughly 3 steps) [c442a42363b2ce5c3eb2b0ff1e052ee956f0a29f] Merge tag '9p-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit c442a42363b2ce5c3eb2b0ff1e052ee956f0a29f gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0d82a5b32f67aa65b39c2059570a6e4fb2e3f2c00bbde2509391e3c6325336e2 all runs: OK false negative chance: 0.000 # git bisect bad c442a42363b2ce5c3eb2b0ff1e052ee956f0a29f Bisecting: 4 revisions left to test after this (roughly 2 steps) [f61c906a7dffaa21b28c52000a75f2c6554a8199] fs/9p: Eliminate now unused v9fs_get_inode determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit f61c906a7dffaa21b28c52000a75f2c6554a8199 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: f57ff473b8b5a6bf7d291af4c445c2b1c420166d81a77400a6eb05f10a760b1b all runs: OK false negative chance: 0.000 # git bisect bad f61c906a7dffaa21b28c52000a75f2c6554a8199 Bisecting: 2 revisions left to test after this (roughly 1 step) [44c53ac09720e7bc62fa1663a3b0b44306e693f0] fs/9p: convert mkdir to use get_new_inode determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 44c53ac09720e7bc62fa1663a3b0b44306e693f0 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 5dfd2cae4a2cb455f9caa9250ea1c1e86369bbae070d23d958d2b948ef678b03 all runs: OK false negative chance: 0.000 # git bisect bad 44c53ac09720e7bc62fa1663a3b0b44306e693f0 Bisecting: 0 revisions left to test after this (roughly 0 steps) [fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81] fs/9p: switch vfsmount to use v9fs_get_new_inode determine whether the revision contains the guilty commit revision 296455ade1fdcf5f8f8c033201633b60946c589a crashed and is reachable testing commit fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 07d61692f01af7f09726de40d17312a3bc0f5a2c2f7718cd25d979a65154a917 all runs: OK false negative chance: 0.000 # git bisect bad fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81 fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81 is the first bad commit commit fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81 Author: Eric Van Hensbergen Date: Fri Jan 5 16:16:36 2024 +0000 fs/9p: switch vfsmount to use v9fs_get_new_inode In the process of cleaning up inode number allocation, I noticed several functions which didn't use the standard helper allocators. This patch fixes the allocation in the mount entrypoint. Signed-off-by: Eric Van Hensbergen fs/9p/vfs_super.c | 29 +---------------------------- 1 file changed, 1 insertion(+), 28 deletions(-) accumulated error probability: 0.00 parent commit 6613476e225e090cc9aad49be7fa504e290dd33d wasn't tested testing commit 6613476e225e090cc9aad49be7fa504e290dd33d gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 8937b36ea6239b367b69d892724fd0c063ac0716de71a332fcbe9d2407329584 culprit signature: 07d61692f01af7f09726de40d17312a3bc0f5a2c2f7718cd25d979a65154a917 parent signature: 8937b36ea6239b367b69d892724fd0c063ac0716de71a332fcbe9d2407329584 revisions tested: 27, total time: 7h28m48.124933865s (build: 1h53m27.240993622s, test: 5h15m51.473338118s) first good commit: fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81 fs/9p: switch vfsmount to use v9fs_get_new_inode recipients (to): ["ericvh@kernel.org"] recipients (cc): []