ci starts bisection 2023-05-26 12:27:27.96680142 +0000 UTC m=+33295.148307484 bisecting fixing commit since 59d0d52c30d4991ac4b329f049cc37118e00f5b0 building syzkaller on 3a127a3157fd19caabb023978737471213127590 ensuring issue is reproducible on original commit 59d0d52c30d4991ac4b329f049cc37118e00f5b0 testing commit 59d0d52c30d4991ac4b329f049cc37118e00f5b0 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b3b0c4f116f47d2ab705c851bc704f2595dc39b04c195e455f40fc982fa6f973 all runs: crashed: kernel BUG in workingset_activation testing current HEAD 0d85b27b0cc6b5cf54567c5ad913a247a71583ce testing commit 0d85b27b0cc6b5cf54567c5ad913a247a71583ce gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b4da6d3f72a3bcd44476d035013394e78928bfb8a2f9954dc9838035c29c3200 all runs: crashed: kernel BUG in workingset_activation crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 24m37.941092953s (build: 17m28.489599142s, test: 6m24.973053724s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag '6.4-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 crash: kernel BUG in workingset_activation tomoyo_supervisor+0x2f8/0xc90 security/tomoyo/common.c:2088 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline] tomoyo_path_number_perm+0x385/0x4b0 security/tomoyo/file.c:734 tomoyo_path_mknod+0xb9/0x130 security/tomoyo/tomoyo.c:251 security_path_mknod+0xcc/0x140 security/security.c:1676 may_o_create fs/namei.c:3314 [inline] lookup_open.isra.0+0x403/0x1510 fs/namei.c:3455 open_last_lookups fs/namei.c:3560 [inline] path_openat+0x7ad/0x2280 fs/namei.c:3788 ------------[ cut here ]------------ kernel BUG at include/linux/memcontrol.h:456! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5416 Comm: syz-executor.0 Not tainted 6.4.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023 RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:456 [inline] RIP: 0010:workingset_activation+0x3ae/0x480 mm/workingset.c:535 Code: 48 89 04 24 e8 e3 0e 00 00 c6 05 07 a4 a9 0b 01 0f 0b 48 8b 04 24 e9 ab fd ff ff 48 c7 c6 20 90 76 89 48 89 ef e8 c2 0e 00 00 <0f> 0b 0f 0b e9 fa fc ff ff 48 c7 c6 e0 90 76 89 48 89 ef e8 aa 0e RSP: 0018:ffffc9000317f5f8 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffffea0001d4bf00 RCX: ffffc9000317f4d0 RDX: 1ffff110054f615f RSI: ffffffff896b91a0 RDI: ffffffff89c447e0 RBP: ffffea0001d4bf00 R08: 0000000000000001 R09: ffffffff8d67ad57 R10: fffffbfff1acf5aa R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880b9a36cc0 R14: 0000000000000003 R15: ffff8880b9a36cf0 FS: 00005555572b2400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000076798000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: folio_mark_accessed+0x498/0x6b0 mm/swap.c:485 handle_changed_spte+0x32e/0x1180 arch/x86/kvm/mmu/tdp_mmu.c:557 handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:445 [inline] handle_changed_spte+0x9d0/0x1180 arch/x86/kvm/mmu/tdp_mmu.c:553 handle_removed_pt arch/x86/kvm/mmu/tdp_mmu.c:445 [inline] handle_changed_spte+0x9d0/0x1180 arch/x86/kvm/mmu/tdp_mmu.c:553 tdp_mmu_set_spte+0x12e/0x2a0 arch/x86/kvm/mmu/tdp_mmu.c:665 tdp_mmu_iter_set_spte arch/x86/kvm/mmu/tdp_mmu.c:673 [inline] __tdp_mmu_zap_root+0x538/0x5a0 arch/x86/kvm/mmu/tdp_mmu.c:767 tdp_mmu_zap_root+0xe2/0x250 arch/x86/kvm/mmu/tdp_mmu.c:803 kvm_tdp_mmu_zap_all+0xe4/0x120 arch/x86/kvm/mmu/tdp_mmu.c:907 kvm_mmu_zap_all+0x1c2/0x210 arch/x86/kvm/mmu/mmu.c:6740 kvm_flush_shadow_all arch/x86/kvm/../../../virt/kvm/kvm_main.c:378 [inline] kvm_mmu_notifier_release+0x5f/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:890 mmu_notifier_unregister+0x119/0x360 mm/mmu_notifier.c:838 kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1299 [inline] kvm_put_kvm+0x385/0xa60 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1347 kvm_vcpu_release+0x4d/0x70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3846 __fput+0x1fa/0x9a0 fs/file_table.c:321 task_work_run+0x12f/0x220 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3a1fa3d40b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007fff5bf035e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f3a1fa3d40b RDX: 00007f3a1f600520 RSI: ffffffffffffffff RDI: 0000000000000006 RBP: 00007f3a1fbad980 R08: 0000000000000000 R09: 00007f3a1f600000 R10: 00007f3a1f600528 R11: 0000000000000293 R12: 0000000000010708 R13: 00007fff5bf036e0 R14: 00007f3a1fbabf80 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_memcg_rcu include/linux/memcontrol.h:456 [inline] RIP: 0010:workingset_activation+0x3ae/0x480 mm/workingset.c:535 Code: 48 89 04 24 e8 e3 0e 00 00 c6 05 07 a4 a9 0b 01 0f 0b 48 8b 04 24 e9 ab fd ff ff 48 c7 c6 20 90 76 89 48 89 ef e8 c2 0e 00 00 <0f> 0b 0f 0b e9 fa fc ff ff 48 c7 c6 e0 90 76 89 48 89 ef e8 aa 0e RSP: 0018:ffffc9000317f5f8 EFLAGS: 00010296 RAX: 0000000000000000 RBX: ffffea0001d4bf00 RCX: ffffc9000317f4d0 RDX: 1ffff110054f615f RSI: ffffffff896b91a0 RDI: ffffffff89c447e0 RBP: ffffea0001d4bf00 R08: 0000000000000001 R09: ffffffff8d67ad57 R10: fffffbfff1acf5aa R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880b9a36cc0 R14: 0000000000000003 R15: ffff8880b9a36cf0 FS: 00005555572b2400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000076798000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400