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[ 65.733149][ T7549] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 65.739195][ T7549] CPU: 5 UID: 0 PID: 7549 Comm: mount Tainted: G S 6.17.0-rc1-00003-g7ec33e314b27 #1 PREEMPT(voluntary) [ 65.751607][ T7549] Tainted: [S]=CPU_OUT_OF_SPEC [ 65.756182][ T7549] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013 [ 65.764022][ T7549] RIP: 0010:btrfs_check_chunk_valid (fs/btrfs/tree-checker.c:847 fs/btrfs/tree-checker.c:1004) btrfs [ 65.770855][ T7549] Code: 24 18 4c 8b 5c 24 10 e9 81 f9 ff ff 48 89 4c 24 18 4c 89 5c 24 10 e8 78 9f 52 bf 48 8b 4c 24 18 4c 8b 5c 24 10 e9 2c fd ff ff <0f> 0b 48 c7 c7 a3 99 51 c2 48 89 4c 24 10 e8 f6 9e 52 bf 48 8b 4c All code ======== 0: 24 18 and $0x18,%al 2: 4c 8b 5c 24 10 mov 0x10(%rsp),%r11 7: e9 81 f9 ff ff jmp 0xfffffffffffff98d c: 48 89 4c 24 18 mov %rcx,0x18(%rsp) 11: 4c 89 5c 24 10 mov %r11,0x10(%rsp) 16: e8 78 9f 52 bf call 0xffffffffbf529f93 1b: 48 8b 4c 24 18 mov 0x18(%rsp),%rcx 20: 4c 8b 5c 24 10 mov 0x10(%rsp),%r11 25: e9 2c fd ff ff jmp 0xfffffffffffffd56 2a:* 0f 0b ud2 <-- trapping instruction 2c: 48 c7 c7 a3 99 51 c2 mov $0xffffffffc25199a3,%rdi 33: 48 89 4c 24 10 mov %rcx,0x10(%rsp) 38: e8 f6 9e 52 bf call 0xffffffffbf529f33 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 4c rex.WR Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 48 c7 c7 a3 99 51 c2 mov $0xffffffffc25199a3,%rdi 9: 48 89 4c 24 10 mov %rcx,0x10(%rsp) e: e8 f6 9e 52 bf call 0xffffffffbf529f09 13: 48 rex.W 14: 8b .byte 0x8b 15: 4c rex.WR [ 65.790121][ T7549] RSP: 0018:ffffc9002239f960 EFLAGS: 00010283 [ 65.795985][ T7549] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000001500000 [ 65.803738][ T7549] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88814af8e0bc [ 65.811492][ T7549] RBP: ffff88814af8e33c R08: 0000000000000001 R09: 0000000000000005 [ 65.819246][ T7549] R10: e400000000000001 R11: 0000000000000000 R12: 000000000000000a [ 65.826998][ T7549] R13: 0000000000000008 R14: 0000000000000005 R15: 0000000000ff0000 [ 65.834749][ T7549] FS: 00007f8edf369840(0000) GS:ffff8882182db000(0000) knlGS:0000000000000000 [ 65.843446][ T7549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.849838][ T7549] CR2: 0000562e34dee000 CR3: 0000000201f00005 CR4: 00000000001726f0 [ 65.857589][ T7549] Call Trace: [ 65.860704][ T7549] [ 65.863474][ T7549] ? set_extent_bit (fs/btrfs/extent-io-tree.c:1099) btrfs [ 65.869002][ T7549] btrfs_validate_super (fs/btrfs/disk-io.c:2369 fs/btrfs/disk-io.c:2558) btrfs [ 65.874869][ T7549] ? crypto_alloc_tfmmem+0x92/0xf0 [ 65.880390][ T7549] ? __pfx_btrfs_validate_super (fs/btrfs/disk-io.c:2393) btrfs [ 65.886682][ T7549] ? btrfs_release_disk_super (include/linux/page-flags.h:226 include/linux/page-flags.h:288 include/linux/mm.h:1424 fs/btrfs/volumes.c:1337) btrfs [ 65.892995][ T7549] open_ctree (fs/btrfs/disk-io.c:3373) btrfs [ 65.897997][ T7549] ? __pfx_open_ctree (fs/btrfs/disk-io.c:3282) btrfs [ 65.903426][ T7549] ? mutex_unlock (arch/x86/include/asm/atomic64_64.h:101 include/linux/atomic/atomic-arch-fallback.h:4329 include/linux/atomic/atomic-long.h:1506 include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:167 kernel/locking/mutex.c:533) [ 65.907740][ T7549] ? __pfx_mutex_unlock (kernel/locking/mutex.c:531) [ 65.912572][ T7549] btrfs_get_tree_super (fs/btrfs/super.c:978 fs/btrfs/super.c:1937) btrfs [ 65.918346][ T7549] btrfs_get_tree_subvol (fs/btrfs/super.c:2074) btrfs [ 65.924203][ T7549] vfs_get_tree (fs/super.c:1816) [ 65.928432][ T7549] do_new_mount (fs/namespace.c:3806) [ 65.932749][ T7549] ? __pfx_do_new_mount (fs/namespace.c:3760) [ 65.937580][ T7549] ? __pfx_map_id_range_up (kernel/user_namespace.c:382) [ 65.942669][ T7549] ? security_capable (security/security.c:1142) [ 65.947330][ T7549] path_mount (fs/namespace.c:4120) [ 65.951561][ T7549] ? 0xffffffff81000000 [ 65.955533][ T7549] ? __pfx_path_mount (fs/namespace.c:4047) [ 65.960193][ T7549] ? kmem_cache_free (mm/slub.c:4680 mm/slub.c:4782) [ 65.964939][ T7549] ? user_path_at (fs/namei.c:3131) [ 65.969259][ T7549] __x64_sys_mount (fs/namespace.c:4134 fs/namespace.c:4344 fs/namespace.c:4321 fs/namespace.c:4321) [ 65.973843][ T7549] ? __pfx___x64_sys_mount (fs/namespace.c:4321) [ 65.978934][ T7549] ? do_user_addr_fault (arch/x86/include/asm/atomic.h:93 include/linux/atomic/atomic-arch-fallback.h:949 include/linux/atomic/atomic-instrumented.h:401 include/linux/refcount.h:389 include/linux/refcount.h:432 include/linux/mmap_lock.h:143 include/linux/mmap_lock.h:267 arch/x86/mm/fault.c:1338) [ 65.983938][ T7549] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 65.988257][ T7549] ? exc_page_fault (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:114 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) [ 65.992749][ T7549] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 65.998441][ T7549] RIP: 0033:0x7f8edf568e0a [ 66.002672][ T7549] Code: 48 8b 0d f9 7f 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c6 7f 0c 00 f7 d8 64 89 01 48 All code ======== 0: 48 8b 0d f9 7f 0c 00 mov 0xc7ff9(%rip),%rcx # 0xc8000 7: f7 d8 neg %eax 9: 64 89 01 mov %eax,%fs:(%rcx) c: 48 83 c8 ff or $0xffffffffffffffff,%rax 10: c3 ret 11: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 18: 00 00 00 1b: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 20: 49 89 ca mov %rcx,%r10 23: b8 a5 00 00 00 mov $0xa5,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d c6 7f 0c 00 mov 0xc7fc6(%rip),%rcx # 0xc8000 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d c6 7f 0c 00 mov 0xc7fc6(%rip),%rcx # 0xc7fd6 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 66.021939][ T7549] RSP: 002b:00007ffe66b952e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 66.030126][ T7549] RAX: ffffffffffffffda RBX: 0000557c5d7619e0 RCX: 00007f8edf568e0a [ 66.037879][ T7549] RDX: 0000557c5d761c10 RSI: 0000557c5d761c50 RDI: 0000557c5d761c30 [ 66.045631][ T7549] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000557c5d762940 [ 66.053384][ T7549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557c5d761c30 [ 66.061140][ T7549] R13: 0000557c5d761c10 R14: 00007f8edf6d0264 R15: 0000557c5d761af8 [ 66.068895][ T7549] [ 66.071750][ T7549] Modules linked in: snd_hda_codec_intelhdmi snd_hda_codec_hdmi btrfs blake2b_generic xor intel_rapl_msr zstd_compress intel_rapl_common snd_hda_codec_alc269 x86_pkg_temp_thermal snd_hda_scodec_component raid6_pq snd_hda_codec_realtek_lib intel_powerclamp i915 snd_hda_codec_generic coretemp snd_hda_intel sd_mod snd_hda_codec kvm_intel intel_gtt sg snd_hda_core drm_buddy ipmi_devintf ipmi_msghandler platform_profile kvm snd_intel_dspcfg ttm snd_intel_sdw_acpi dell_wmi snd_hwdep irqbypass drm_display_helper dell_smbios ghash_clmulni_intel mei_wdt snd_pcm cec dell_wmi_descriptor drm_client_lib rapl ahci sparse_keymap rfkill snd_timer libahci drm_kms_helper intel_cstate mei_me pcspkr dcdbas intel_uncore libata mei video snd i2c_i801 lpc_ich soundcore i2c_smbus wmi binfmt_misc loop fuse drm dm_mod [ 66.142949][ T7549] ---[ end trace 0000000000000000 ]--- [ 66.148220][ T7549] RIP: 0010:btrfs_check_chunk_valid (fs/btrfs/tree-checker.c:847 fs/btrfs/tree-checker.c:1004) btrfs [ 66.155057][ T7549] Code: 24 18 4c 8b 5c 24 10 e9 81 f9 ff ff 48 89 4c 24 18 4c 89 5c 24 10 e8 78 9f 52 bf 48 8b 4c 24 18 4c 8b 5c 24 10 e9 2c fd ff ff <0f> 0b 48 c7 c7 a3 99 51 c2 48 89 4c 24 10 e8 f6 9e 52 bf 48 8b 4c All code ======== 0: 24 18 and $0x18,%al 2: 4c 8b 5c 24 10 mov 0x10(%rsp),%r11 7: e9 81 f9 ff ff jmp 0xfffffffffffff98d c: 48 89 4c 24 18 mov %rcx,0x18(%rsp) 11: 4c 89 5c 24 10 mov %r11,0x10(%rsp) 16: e8 78 9f 52 bf call 0xffffffffbf529f93 1b: 48 8b 4c 24 18 mov 0x18(%rsp),%rcx 20: 4c 8b 5c 24 10 mov 0x10(%rsp),%r11 25: e9 2c fd ff ff jmp 0xfffffffffffffd56 2a:* 0f 0b ud2 <-- trapping instruction 2c: 48 c7 c7 a3 99 51 c2 mov $0xffffffffc25199a3,%rdi 33: 48 89 4c 24 10 mov %rcx,0x10(%rsp) 38: e8 f6 9e 52 bf call 0xffffffffbf529f33 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 4c rex.WR Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 48 c7 c7 a3 99 51 c2 mov $0xffffffffc25199a3,%rdi 9: 48 89 4c 24 10 mov %rcx,0x10(%rsp) e: e8 f6 9e 52 bf call 0xffffffffbf529f09 13: 48 rex.W 14: 8b .byte 0x8b 15: 4c rex.WR The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250818/202508181031.5f89d7-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki