[linus:master] [eventfs] ba37ff75e0: WARNING:at_mm/slab.h:#cache_from_obj

From: kernel test robot
Date: Tue Sep 05 2023 - 12:20:51 EST

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Hello,

kernel test robot noticed "WARNING:at_mm/slab.h:#cache_from_obj" on:

commit: ba37ff75e04be7df5fa19dcd86f81c984294a37b ("eventfs: Implement tracefs_inode_cache")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linux-next/master a47fc304d2b678db1a5d760a7d644dac9b067752]

in testcase: boot

compiler: gcc-11
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202309050916.58201dc6-oliver.sang@xxxxxxxxx

[ 45.215521][ C1] ------------[ cut here ]------------
[ 45.216692][ C1] cache_from_obj: Wrong slab cache. tracefs_inode_cache but object is from inode_cache
[ 45.218391][ C1] WARNING: CPU: 1 PID: 21 at mm/slab.h:661 cache_from_obj (mm/slab.h:661 (discriminator 1))
[ 45.219836][ C1] Modules linked in:
[ 45.220610][ C1] CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.5.0-rc4-00007-gba37ff75e04b #1
[ 45.220941][ T1] DLM installed
[ 45.221672][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 45.224683][ C1] RIP: 0010:cache_from_obj (mm/slab.h:661 (discriminator 1))
[ 45.225440][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 45.225468][ C1] Code: 8d 72 ff 83 e2 01 48 0f 45 c6 eb b5 4d 8b 45 58 48 8b 51 58 48 c7 c6 f0 b1 56 87 48 c7 c7 40 88 be 88 4c 89 c1 e8 8c 82 80 ff <0f> 0b 4c 89 e6 4c 89 ef e8 0f c4 ff ff 4c 89 e8 41 5c 41 5d 5d c3
All code
========
0: 8d 72 ff lea -0x1(%rdx),%esi
3: 83 e2 01 and $0x1,%edx
6: 48 0f 45 c6 cmovne %rsi,%rax
a: eb b5 jmp 0xffffffffffffffc1
c: 4d 8b 45 58 mov 0x58(%r13),%r8
10: 48 8b 51 58 mov 0x58(%rcx),%rdx
14: 48 c7 c6 f0 b1 56 87 mov $0xffffffff8756b1f0,%rsi
1b: 48 c7 c7 40 88 be 88 mov $0xffffffff88be8840,%rdi
22: 4c 89 c1 mov %r8,%rcx
25: e8 8c 82 80 ff call 0xffffffffff8082b6
2a:* 0f 0b ud2 <-- trapping instruction
2c: 4c 89 e6 mov %r12,%rsi
2f: 4c 89 ef mov %r13,%rdi
32: e8 0f c4 ff ff call 0xffffffffffffc446
37: 4c 89 e8 mov %r13,%rax
3a: 41 5c pop %r12
3c: 41 5d pop %r13
3e: 5d pop %rbp
3f: c3 ret

Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 4c 89 e6 mov %r12,%rsi
5: 4c 89 ef mov %r13,%rdi
8: e8 0f c4 ff ff call 0xffffffffffffc41c
d: 4c 89 e8 mov %r13,%rax
10: 41 5c pop %r12
12: 41 5d pop %r13
14: 5d pop %rbp
15: c3 ret
[ 45.230147][ C1] RSP: 0000:ffffc9000016fc20 EFLAGS: 00010286
[ 45.231208][ C1] RAX: dffffc0000000000 RBX: ffff8881286e3150 RCX: 0000000000000100
[ 45.232570][ C1] RDX: ffff8881003c9a00 RSI: ffffffff8126acd8 RDI: 0000000000000003
[ 45.234058][ C1] RBP: ffffc9000016fc30 R08: 0000000000000000 R09: 0000000000000000
[ 45.235160][ T1] utf8_selftest: All 154 tests passed
[ 45.235410][ C1] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8881286e3150
[ 45.237775][ T1] ksmbd: The ksmbd server is experimental
[ 45.238094][ C1] R13: ffff8881000de640 R14: ffffc9000016fd50 R15: 0000000000000001
[ 45.238861][ T1] ntfs: driver 2.1.32 [Flags: R/O DEBUG].
[ 45.239349][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/
[ 45.239964][ C1] FS: 0000000000000000(0000) GS:ffff8883ae700000(0000) knlGS:0000000000000000
[ 45.240951][ T1] qnx6: QNX6 filesystem 1.0.0 registered.
[ 45.241460][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.243778][ T1] JFS: nTxBlock = 8192, nTxLock = 65536
[ 45.244480][ C1] CR2: 0000000000000000 CR3: 00000000090fa000 CR4: 00000000000406e0
[ 45.249527][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.251125][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 45.252621][ C1] Call Trace:
[ 45.253384][ C1] <TASK>
[ 45.254011][ C1] ? show_regs (arch/x86/kernel/dumpstack.c:479)
[ 45.254861][ C1] ? __warn (kernel/panic.c:673)
[ 45.255707][ C1] ? write_comp_data (kernel/kcov.c:236)
[ 45.256710][ C1] ? cache_from_obj (mm/slab.h:661 (discriminator 1))
[ 45.257982][ C1] ? report_bug (include/linux/context_tracking.h:153 lib/bug.c:220)
[ 45.258865][ C1] ? handle_bug (arch/x86/kernel/traps.c:324)
[ 45.259756][ C1] ? exc_invalid_op (arch/x86/kernel/traps.c:345 (discriminator 1))
[ 45.260670][ C1] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:568)
[ 45.262016][ C1] ? __warn_printk (kernel/panic.c:712)
[ 45.262982][ C1] ? cache_from_obj (mm/slab.h:661 (discriminator 1))
[ 45.263914][ C1] kmem_cache_free (mm/slub.c:3820)
[ 45.264756][ T1] NILFS version 2 loaded
[ 45.264827][ C1] ? inode_free_by_rcu (security/security.c:1495)
[ 45.265394][ T1] befs: version: 0.9.3
[ 45.266034][ C1] ? kmem_cache_free (mm/slub.c:3801 mm/slub.c:3823)
[ 45.267414][ T1] ocfs2: Registered cluster interface o2cb
[ 45.267526][ C1] tracefs_free_inode (fs/tracefs/inode.c:49)
[ 45.268980][ T1] ocfs2: Registered cluster interface user
[ 45.269267][ C1] ? tracefs_show_options (fs/tracefs/inode.c:47)
[ 45.269316][ C1] i_callback (fs/inode.c:252)
[ 45.269347][ C1] rcu_do_batch (include/linux/rcupdate.h:308 kernel/rcu/tree.c:2137)
[ 45.269394][ C1] ? cond_synchronize_rcu_expedited_full (kernel/rcu/tree.c:2066)
[ 45.269473][ C1] ? rcu_report_qs_rdp (kernel/rcu/tree.c:2008)
[ 45.269509][ C1] rcu_core (kernel/rcu/tree.c:2401)
[ 45.269543][ C1] rcu_core_si (kernel/rcu/tree.c:2417)
[ 45.269567][ C1] __do_softirq (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 include/trace/events/irq.h:142 kernel/softirq.c:554)
[ 45.269597][ C1] ? __probestub_softirq_exit (kernel/softirq.c:914)
[ 45.269627][ C1] run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913)
[ 45.269650][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3))
[ 45.269691][ C1] kthread (kernel/kthread.c:389)
[ 45.269716][ C1] ? sort_range (kernel/smpboot.c:107)
[ 45.269742][ C1] ? kthread_complete_and_exit (kernel/kthread.c:342)
[ 45.269774][ C1] ret_from_fork (arch/x86/kernel/process.c:151)
[ 45.269805][ C1] ? kthread_complete_and_exit (kernel/kthread.c:342)
[ 45.269833][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)
[ 45.269885][ C1] </TASK>
[ 45.269894][ C1] irq event stamp: 318254
[ 45.269903][ C1] hardirqs last enabled at (318260): console_trylock_spinning (arch/x86/include/asm/irqflags.h:42 (discriminator 1) arch/x86/include/asm/irqflags.h:77 (discriminator 1) arch/x86/include/asm/irqflags.h:135 (discriminator 1) kernel/printk/printk.c:1961 (discriminator 1))
[ 45.270030][ C1] hardirqs last disabled at (318265): console_trylock_spinning (kernel/printk/printk.c:1940 (discriminator 1))
[ 45.270071][ C1] softirqs last enabled at (317598): __do_softirq (arch/x86/include/asm/preempt.h:27 kernel/softirq.c:400 kernel/softirq.c:582)
[ 45.270100][ C1] softirqs last disabled at (317603): run_ksoftirqd (kernel/softirq.c:410 kernel/softirq.c:922 kernel/softirq.c:913)
[ 45.270132][ C1] ---[ end trace 0000000000000000 ]---
[ 45.271786][ T1] OCFS2 User DLM kernel interface loaded
[ 45.271905][ C1] ==================================================================
[ 45.277835][ T1] gfs2: GFS2 installed

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230905/202309050916.58201dc6-oliver.sang@xxxxxxxxx

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Next message: SeongJae Park: "[RFC v2] mm/damon/core: use number of passed access sampling as a timer"
Previous message: Vladimir Oltean: "Re: [PATCH v3 RFC 2/4] net: dsa: Extend ksz9477 TAG setup to support HSR frames duplication"
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