Title | Replies (including bot) | Last reply |
---|---|---|
[syzbot] WARNING: suspicious RCU usage in mas_state_walk (2) | 0 (1) | 2023/02/13 06:16 |
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Title | Replies (including bot) | Last reply |
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[syzbot] WARNING: suspicious RCU usage in mas_state_walk (2) | 0 (1) | 2023/02/13 06:16 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | WARNING: suspicious RCU usage in mas_state_walk maple-tree | C | 2 | 404d | 404d | 0/26 | closed as invalid on 2023/02/08 16:28 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2023/05/14 10:09 | 24m | retest repro | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | OK log | |
2023/05/14 10:09 | 24m | retest repro | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | OK log |
============================= WARNING: suspicious RCU usage 6.2.0-syzkaller-18300-g2ebd1fbb946d #0 Not tainted ----------------------------- lib/maple_tree.c:852 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 5 locks held by syz-executor179/6429: #0: ffff0000d8dc0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x244/0x914 fs/read_write.c:580 #1: ffff0000d2f28088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c8/0x48c fs/kernfs/file.c:325 #2: ffff0000c110ecb8 (kn->active#42){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1e4/0x48c fs/kernfs/file.c:326 #3: ffff800015e40b88 (ksm_thread_mutex){+.+.}-{3:3}, at: run_store+0x10c/0xa1c mm/ksm.c:2954 #4: ffff0000cd695f88 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline] #4: ffff0000cd695f88 (&mm->mmap_lock){++++}-{3:3}, at: unmerge_and_remove_all_rmap_items mm/ksm.c:990 [inline] #4: ffff0000cd695f88 (&mm->mmap_lock){++++}-{3:3}, at: run_store+0x274/0xa1c mm/ksm.c:2960 stack backtrace: CPU: 1 PID: 6429 Comm: syz-executor179 Not tainted 6.2.0-syzkaller-18300-g2ebd1fbb946d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 dump_stack+0x1c/0x28 lib/dump_stack.c:113 lockdep_rcu_suspicious+0x188/0x1e0 kernel/locking/lockdep.c:6597 mas_root lib/maple_tree.c:852 [inline] mas_start lib/maple_tree.c:1357 [inline] mas_state_walk+0x2ac/0x400 lib/maple_tree.c:3838 mas_walk+0x44/0x148 lib/maple_tree.c:5046 mas_find+0x1bc/0x200 lib/maple_tree.c:6012 vma_find include/linux/mm.h:674 [inline] vma_next include/linux/mm.h:683 [inline] unmerge_and_remove_all_rmap_items mm/ksm.c:991 [inline] run_store+0x28c/0xa1c mm/ksm.c:2960 kobj_attr_store+0x6c/0x90 lib/kobject.c:824 sysfs_kf_write+0x200/0x280 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x334/0x48c fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2189 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x610/0x914 fs/read_write.c:584 ksys_write+0x15c/0x26c fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:646 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/02/27 16:40 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2ebd1fbb946d | e792ae78 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | |
2023/02/09 07:37 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | eaed33698e35 | 14a312c8 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | |
2023/02/21 10:22 | upstream | 89f5349e0673 | f949448d | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | WARNING: suspicious RCU usage in mas_state_walk | |||
2023/02/20 01:53 | upstream | c9c3395d5e3d | bcdf85f8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/18 10:35 | upstream | dbeed98d89ea | d02e9a70 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | WARNING: suspicious RCU usage in mas_state_walk | |||
2023/02/15 07:06 | upstream | e1c04510f521 | 1d6b4af7 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | WARNING: suspicious RCU usage in mas_state_walk | |||
2023/02/13 15:14 | upstream | ceaa837f96ad | 4d66ad72 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | WARNING: suspicious RCU usage in mas_state_walk | |||
2023/03/02 05:34 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2ebd1fbb946d | f8902b57 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/27 09:51 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2ebd1fbb946d | e792ae78 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/22 12:22 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a9b06ec42c0f | 409945bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/21 09:32 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a9b06ec42c0f | f949448d | .config | console log | report | info | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | |||
2023/02/17 12:02 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 3e7039f4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/16 12:01 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 7338e3c4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/15 11:16 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 6be0f1f5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/13 12:06 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 4d66ad72 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/10 19:29 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 2d3827b3f393 | 95871dcc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/09 17:17 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | eaed33698e35 | 07980f9d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk | ||
2023/02/09 06:04 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | eaed33698e35 | 14a312c8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: suspicious RCU usage in mas_state_walk |