bisecting cause commit starting from 80871482fd5cb1cb396ea232237a7d9c540854f9 building syzkaller on b617407b25b37a7a8efa47127005d1f20dd0abe1 testing commit 80871482fd5cb1cb396ea232237a7d9c540854f9 with gcc (GCC) 8.1.0 kernel signature: 357830753d442edbebdbdc002f8cfc691ac29de0 all runs: crashed: INFO: rcu detected stall in corrupted testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: c11bb05a58a495dd944f4d377fde61e951738dc5 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: dc1593d1bf300cbdf4103d0601ec3d5a9b997ca0 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: bfe1033feb284d29a0d2e76f5f31e0fabce7163a all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: 00008216ef542c25cb1b041de234618b88b7d199 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 8190db314d4c33ece0ae7e9ba0f0becddc4328d6 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 kernel signature: e70f5b8f82434faa11a3b100014916d6c642d804 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 kernel signature: ecf87609424eb1ec17daa67d16c63cb168ee4746 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 kernel signature: 688f909e3209e357bda302e39c81788fca9e057c all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 kernel signature: 28b1f1d345a47dc484254914fe80285060ad439e run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: no output from test machine testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 kernel signature: 5c82c7cd92f9440de35a8f7d53468fe9c7318b0c all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 kernel signature: acfd3da7c0ba75bb4482cf86fc0eec9a3efc306c all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 kernel signature: 9207e14f656f3126caaf2312031fbeda10ccedea all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: 4402b6f0701f12038942e837ff9556b5df328c7e all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.8 testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0 kernel signature: 1d8398fec52be46787ee8291fa2c86661ad83c36 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.7 testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0 kernel signature: 8aa4bf46ea300f0cdf305a0b09fe3f1aec89b858 all runs: crashed: INFO: rcu detected stall in corrupted testing release v4.6 testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a with gcc (GCC) 5.5.0 kernel signature: afb8f11520fd80e43aa4dc999dbc788820c39377 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: no output from test machine run #3: crashed: no output from test machine run #4: crashed: no output from test machine run #5: crashed: no output from test machine run #6: crashed: no output from test machine run #7: crashed: no output from test machine run #8: crashed: no output from test machine run #9: crashed: no output from test machine testing release v4.5 testing commit b562e44f507e863c6792946e4e1b1449fbbac85d with gcc (GCC) 5.5.0 kernel signature: 90784c803b6e7eea8dc5dcbee64f3fdda3b70692 all runs: crashed: no output from test machine testing release v4.4 testing commit afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc with gcc (GCC) 5.5.0 kernel signature: 660035f10ff3ee7e306f067757bad4c74f0b8f1d all runs: crashed: no output from test machine testing release v4.3 testing commit 6a13feb9c82803e2b815eca72fa7a9f5561d7861 with gcc (GCC) 5.5.0 kernel signature: 9a114667def2f6c3f973d5867620263926a4f0b1 run #0: crashed: no output from test machine run #1: crashed: no output from test machine run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v4.2 testing commit 64291f7db5bd8150a74ad2036f1037e6a0428df2 with gcc (GCC) 5.5.0 kernel signature: e0785a2ba1f9b2060cf5feec1ccff3ab6ae35bb6 run #0: crashed: no output from test machine run #1: crashed: no output from test machine run #2: crashed: no output from test machine run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v4.1 testing commit b953c0d234bc72e8489d3bf51a276c5c4ec85345 with gcc (GCC) 5.5.0 kernel signature: 8e7a632b09cf7f83a51837eb1e844d724d64a183 run #0: crashed: no output from test machine run #1: crashed: no output from test machine run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK revisions tested: 22, total time: 4h3m4.917528512s (build: 1h37m20.368200667s, test: 2h19m31.668962692s) the crash already happened on the oldest tested release commit msg: Linux 4.1 crash: no output from test machine