ci starts bisection 2026-10-10 05:26:21.649440681 +0000 UTC m=+167.468672152
bisecting cause commit starting from f0406245cb9855e6318335a8a223551354291a46
building syzkaller on 57bbd979bc50a3acd0eac610ef944726ba358063
fetch other tags and check if the commit is present
ensuring issue is reproducible on original commit f0406245cb9855e6318335a8a223551354291a46

testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: dc098ba4a8b4dffdc27d243892b99809b4beb35daf6ff058a7fbc0fc0c24162b
run #0: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in __rq_qos_throttle
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in do_get_write_access
run #10: crashed: INFO: task hung in do_get_write_access
run #11: crashed: INFO: task hung in do_get_write_access
run #12: crashed: INFO: task hung in do_get_write_access
run #13: crashed: INFO: task hung in do_get_write_access
run #14: crashed: INFO: task hung in do_get_write_access
run #15: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #16: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #17: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #18: crashed: INFO: task hung in do_get_write_access
run #19: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in jbd2_journal_commit_transaction, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 711fdf4ae3503a9ddfae19f025fa337475c2bbbc1fe439b181cc70183f2e8672
run #0: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in jbd2_journal_commit_transaction, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
kconfig minimization: base=4177 full=8713 leaves diff=2148
split chunks (needed=false): <2148>
split chunk #0 of len 2148 into 5 parts
testing without sub-chunk 1/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 7a269cfc47fb0aa889b2a958959289be4b44d54e41f7b4d4673ea0c9f327dc91
run #0: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #1: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in jbd2_journal_commit_transaction, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 022c322ddebefae8400f9a6c527e2d0a343e2792bbf76f7b0a1074310e56f2c3
run #0: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #1: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in jbd2_journal_commit_transaction, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 33e9898a8251fb1aa30bf23e03a1d209af764e5783db1066a877e8eaffca42df
run #0: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in jbd2_journal_commit_transaction, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 45ad8b6b64fbdd838c805e3d6332eed5046f015b2d9dcc224c3783df39263fcd
all runs: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit f0406245cb9855e6318335a8a223551354291a46 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: d82f69fc7793d1ab13d0d4f060bc6e84fa2611d6d74a13d076b753b25fef027e
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
the chunk can be dropped
disabling configs for [locking atomic_sleep memleak ubsan bug_or_warning kasan], they are not needed
picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags
testing release v7.2
testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 41361de000591657b1ff471b850a9582b07a21246188753a4a2f52ba4544b634
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v7.1
testing commit 8cd9520d35a6c38db6567e97dd93b1f11f185dc6 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 8c26c5ff0dd8a59791c1b92fcff52fbd1f1197eede109fd82c2d17318f29e123
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v7.0
testing commit 028ef9c96e96197026887c0f092424679298aae8 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: b14fcd9bfe5e1304d5c87f9768fed9e35e1cb8c4b136fbce8f8825aa3f394014
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.18
testing commit 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: af7a9bd527bcf38848110177f495ba4537bc28b86f8898e0f1d049560d519c0e
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.16
testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: c3dad4aaff20571bcd900f841c972dfee7da7096f6c9f27ef7b1d86fea7ebb44
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.14
testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 22a6379ff5ad7fe18fc08387b0f69f0f2f61a2fe7dafb3102c80fe1aab23bf3f
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.12
testing commit adc218676eef25575469234709c2d87185ca223a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 4bcad33db4dffdf04cb277cb2aae803f2a858f891563464984de80e97ab0569c
all runs: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.10
testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 5a5bc8ebbe7f81a971cf8fecef123a3390fae59773231a4ef27a417410783362
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #8: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.7
testing commit 0dd3ee31125508cd67f7e7172247f05b7fd1753a gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: 9552bb8cace196f9876aa2141971d937072c03945d92ab97c2f4cdd84e12c48a
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in do_get_write_access
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in blk_mq_get_tag
run #6: crashed: INFO: task hung in do_get_write_access
run #7: crashed: INFO: task hung in blk_mq_get_tag
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in blk_mq_get_tag
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.4
testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: f2153fc4066e0fb583690af33cca05f316c71aa539744164f10f055847d6b657
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: e81f96dd48c2c43a1d1d82b5d5ded3489f218c045c61b790c30ae4f50cca1b11
all runs: boot failed: can't ssh into the instance
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.18
testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
kernel signature: a2574127abe1bbb10912da2a36e8441c3b184ad67459c6ca6288aa78c311dff3
all runs: boot failed: can't ssh into the instance
unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 244af604c42fee6a389cf3f37fa3e981d72bb34f2c89afb6a1956ae27330a4a5
all runs: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: b2b35f182baeba96af6c7af0963d9f8bf42ca26d89100d4d13cc76cea94935ff
run #0: crashed: INFO: task hung in do_get_write_access
run #1: crashed: INFO: task hung in do_get_write_access
run #2: crashed: INFO: task hung in do_get_write_access
run #3: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #4: crashed: INFO: task hung in do_get_write_access
run #5: crashed: INFO: task hung in do_get_write_access
run #6: crashed: INFO: task hung in jbd2_journal_commit_transaction
run #7: crashed: INFO: task hung in do_get_write_access
run #8: crashed: INFO: task hung in do_get_write_access
run #9: crashed: INFO: task hung in jbd2_journal_commit_transaction
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.44
kernel signature: 7e5d895fc4bd81d2a2ff2a9b2c583520c8e38ce9c13905c857dac312faf5d2df
all runs: crashed: INFO: task hung in do_get_write_access
representative crash: INFO: task hung in do_get_write_access, types: [HANG]
testing release v5.6
revisions tested: 22, total time: 12h26m41.044147571s (build: 3h50m29.507950483s, test: 5h11m25.367076458s)
error: bisection is taking too long (>12h0m0s), aborting