ci2 starts bisection 2023-04-27 16:22:52.431716153 +0000 UTC m=+17561.111020725 bisecting fixing commit since 115472395b0a9ea522ba0e106d6dfd7a73df8ba6 building syzkaller on 47f3aaf18b57644f3c07714c9ce073a210f061b4 ensuring issue is reproducible on original commit 115472395b0a9ea522ba0e106d6dfd7a73df8ba6 testing commit 115472395b0a9ea522ba0e106d6dfd7a73df8ba6 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 260d45490e81e8187187517f19179005db3b8c84f6e5afe0a82b68b95c2a10cb run #0: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0012f00a0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0017425f0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc0017426e0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #3: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742780] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #4: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742820] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #5: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742af0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #6: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742140] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #7: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742460] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #8: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001742500] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #9: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc001550280] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #10: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00ccea3c0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #11: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00ccea4b0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #12: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #13: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #14: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #15: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #16: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #17: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #18: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #19: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath testing current HEAD f48aeeaaa64c628519273f6007a745cf55b68d95 testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 37450108b7f1ef979902425d942e5a315c384bc2411fa0855142df73c4e51e20 run #0: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc003aa7a90] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: boot failed: create image operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc000147810] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 64.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #3: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #4: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #5: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #6: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #7: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #8: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath run #9: crashed: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath revisions tested: 2, total time: 49m56.998203084s (build: 43m24.901279873s, test: 5m50.927139132s) the crash still happens on HEAD commit msg: Linux 5.15.109 crash: BUG: unable to handle kernel paging request in mem_cgroup_track_foreign_dirty_slowpath Unable to handle kernel paging request at virtual address dfff80000000023d Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff80000000023d] address between user and kernel address ranges Internal error: Oops: 96000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4690 Comm: syz-executor.0 Not tainted 5.15.109-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mem_cgroup_track_foreign_dirty_slowpath+0xe0/0x9f0 mm/memcontrol.c:4616 lr : trace_track_foreign_dirty include/trace/events/writeback.h:237 [inline] lr : mem_cgroup_track_foreign_dirty_slowpath+0xd0/0x9f0 mm/memcontrol.c:4607 sp : ffff80001b627860 x29: ffff80001b627870 x28: 00000000ffffa23d x27: 1fffff8000675bd9 x26: 0000000000000000 x25: dfff800000000000 x24: 0000000000000000 x23: ffff0000cc9365e0 x22: 0000000000000000 x21: 00000000000011e8 x20: ffff0000cc936060 x19: 0000000000000000 x18: ffff80001b627200 x17: 1fffe0003695198e x16: ffff8000106cb75c x15: 00000000000185c6 x14: 1ffff000026b406a x13: dfff800000000000 x12: 00000000b1f45f7d x11: 0000000000000002 x10: 0000000000000003 x9 : 0000000000000000 x8 : 000000000000023d x7 : ffff8000087bfa48 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000010 x1 : ffff800010cb9cc0 x0 : 0000000000000001 Call trace: mem_cgroup_track_foreign_dirty_slowpath+0xe0/0x9f0 mm/memcontrol.c:4616 mem_cgroup_track_foreign_dirty include/linux/memcontrol.h:1588 [inline] account_page_dirtied mm/page-writeback.c:2463 [inline] __set_page_dirty+0x674/0x978 mm/page-writeback.c:2500 __set_page_dirty_buffers+0x118/0x378 fs/buffer.c:643 set_page_dirty+0x198/0x3a0 mm/page-writeback.c:2609 filemap_page_mkwrite+0x3f4/0x8c0 mm/filemap.c:3371 do_page_mkwrite+0x128/0x2d8 mm/memory.c:2883 wp_page_shared+0x138/0x2c8 mm/memory.c:3216 do_wp_page+0x1c4/0x748 mm/memory.c:3317 handle_pte_fault mm/memory.c:4626 [inline] __handle_mm_fault mm/memory.c:4743 [inline] handle_mm_fault+0x15c4/0x29d4 mm/memory.c:4841 __do_page_fault arch/arm64/mm/fault.c:505 [inline] do_page_fault+0x540/0x814 arch/arm64/mm/fault.c:605 do_mem_abort+0x6c/0x1a8 arch/arm64/mm/fault.c:819 el0_da+0x94/0x20c arch/arm64/kernel/entry-common.c:482 el0t_64_sync_handler+0xc0/0xe4 arch/arm64/kernel/entry-common.c:617 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 36002f20 52823d08 8b080275 d343fea8 (38796908) ---[ end trace 945c35cceb5cb4d9 ]--- ---------------- Code disassembly (best guess): 0: 36002f20 tbz w0, #0, 0x5e4 4: 52823d08 mov w8, #0x11e8 // #4584 8: 8b080275 add x21, x19, x8 c: d343fea8 lsr x8, x21, #3 * 10: 38796908 ldrb w8, [x8, x25] <-- trapping instruction