Re: [BUG] 6.10.10: Bad page state in process xyz
From: Vlastimil Babka
Date: Thu Oct 03 2024 - 11:06:07 EST
On 9/14/24 14:10, thomas wrote:
> Hi,
>
> in 6.10.10 kernel on x86 I see those BUGs:
>
> [ 19.131851] BUG: Bad page state in process update-exim4.co pfn:06dd0
> [ 19.136660] page: refcount:0 mapcount:-1 mapping:00000000 index:0x0 pfn:0x6dd0
> [ 19.136672] flags: 0x40000014(referenced|dirty|zone=1)
> [ 19.136686] raw: 40000014 00000000 00000122 00000000 00000000 00000000 fffffffe 00000000
> [ 19.136691] raw: 00000000 00000000
> [ 19.136694] page dumped because: nonzero mapcount
> [ 19.136697] Modules linked in: btusb btrtl btintel btbcm btmtk bluetooth ecdh_generic ecc hid_appleir input_leds af_packet mousedev hid_apple hid_generic usbmouse usbkbd usbhid appletouch joydev sr_mod cfg80211 cdrom rfkill snd_hda_codec_idt snd_hda_codec_generic radeon snd_hda_intel drm_suballoc_helper i2c_algo_bit snd_intel_dspcfg drm_ttm_helper ttm snd_hda_codec snd_hwdep snd_hda_core drm_display_helper snd_pcm i2c_i801 applesmc acpi_cpufreq i2c_smbus ata_piix rng_core drm_kms_helper ehci_pci snd_timer snd soundcore sky2 uhci_hcd ehci_hcd rtc_cmos apple_bl video wmi mac_hid sg binfmt_script binfmt_misc fuse drm dm_mod configfs efivarfs ip_tables ipv6 autofs4
> [ 19.136862] CPU: 1 PID: 1747 Comm: update-exim4.co Tainted: G W 6.10.10+ #1
IIRC W means there was a warning before the BUG. Got any?
Is 6.11 also affected? I'd suggest bisection if possible.
Thanks
Vlastimil
> [ 19.136870] Hardware name: Apple Computer, Inc. MacBookPro1,1/Mac-F425BEC8, BIOS MBP11.88Z.0055.B08.0610121325 10/12/06
> [ 19.136875] Call Trace:
> [ 19.136880] ? dump_stack_lvl+0x51/0x60
> [ 19.136896] ? dump_stack+0xa/0xc
> [ 19.136904] ? bad_page+0x5f/0xf0
> [ 19.136915] ? free_unref_folios+0x24b/0x5a0
> [ 19.136926] ? folios_put_refs+0x108/0x14c
> [ 19.136936] ? free_pages_and_swap_cache+0x130/0x138
> [ 19.136953] ? tlb_batch_pages_flush+0xb6/0xf0
> [ 19.136960] ? unmap_page_range+0xaec/0x1214
> [ 19.136973] ? do_wp_page+0x6d5/0xf38
> [ 19.136983] ? unmap_vmas+0x74/0xf0
> [ 19.136993] ? exit_mmap+0x94/0x1f8
> [ 19.137004] ? __mmput+0x31/0xec
> [ 19.137012] ? do_exit+0x2a8/0x900
> [ 19.137022] ? do_group_exit+0x21/0x68
> [ 19.137031] ? __ia32_sys_exit_group+0xd/0x10
> [ 19.137040] ? ia32_sys_call+0x211a/0x222c
> [ 19.137047] ? __do_fast_syscall_32+0x50/0xd0
> [ 19.137057] ? do_fast_syscall_32+0x26/0x58
> [ 19.137065] ? entry_SYSENTER_32+0x98/0xf8
> [ 19.137077] Disabling lock debugging due to kernel taint
> [ 19.137315] BUG: Bad rss-counter state mm:696603f8 type:MM_FILEPAGES val:-1
>
> In my previous kernel I didn't see such BUGs, besides thisWARNING:
>
> Sep 12 10:31:54 maria kernel: ------------[ cut here ]------------
> Sep 12 10:31:54 maria kernel: DEBUG_LOCKS_WARN_ON(val > preempt_count())
> Sep 12 10:31:54 maria kernel: WARNING: CPU: 0 PID: 2894 at preempt_count_sub+0x56/0x90
> Sep 12 10:31:54 maria kernel: Modules linked in: crypto_simd cryptd xts dm_crypt rfcomm bnep btusb btrtl btintel btbcm btmtk bluetooth ecdh_generic ecc hid_appleir input_leds hid_apple mousedev hid_generic usbkbd usbmouse af_packet appletouch usbhid cfg80211 rfkill joydev sr_mod cdrom snd_hda_codec_idt snd_hda_codec_generic ledtrig_audio radeon snd_hda_intel drm_suballoc_helper snd_intel_dspcfg i2c_algo_bit snd_hda_codec drm_ttm_helper snd_hwdep snd_hda_core ttm i2c_i801 applesmc snd_pcm drm_display_helper snd_timer acpi_cpufreq i2c_smbus ata_piix drm_kms_helper rng_core sky2 snd ehci_pci rtc_cmos soundcore apple_bl uhci_hcd video ehci_hcd wmi mac_hid sg binfmt_script binfmt_misc fuse drm dm_mod configfs efivarfs ip_tables ipv6 autofs4
> Sep 12 10:31:54 maria kernel: CPU: 0 PID: 2894 Comm: kworker/0:0 Tainted: G W 6.7.12+ #2
> Sep 12 10:31:54 maria kernel: Hardware name: Apple Computer, Inc. MacBookPro1,1/Mac-F425BEC8, BIOS MBP11.88Z.0055.B08.0610121325 10/12/06
> Sep 12 10:31:54 maria kernel: Workqueue: events ata_scsi_dev_rescan
> Sep 12 10:31:54 maria kernel: EIP: preempt_count_sub+0x56/0x90
> Sep 12 10:31:54 maria kernel: Code: 9b c3 8d b6 00 00 00 00 e8 4b 12 34 00 85 c0 74 f0 8b 0d 40 e3 3f 9b 85 c9 75 e6 68 7b cb 22 9b 68 cd e7 21 9b e8 6a 9c fd ff <0f> 0b 58 5a c3 8d b4 26 00 00 00 00 66 90 84 d2 75 bc e8 17 12 34
> Sep 12 10:31:54 maria kernel: EAX: 0000002a EBX: 81d9da40 ECX: 00000002 EDX: 80000002
> Sep 12 10:31:54 maria kernel: ESI: 81d9eddc EDI: 81d9ee1c EBP: 00400000 ESP: a4043f08
> Sep 12 10:31:54 maria kernel: DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010286
> Sep 12 10:31:54 maria kernel: CR0: 80050033 CR2: 77e42868 CR3: 1b4ce000 CR4: 000006f0
> Sep 12 10:31:54 maria kernel: Call Trace:
> Sep 12 10:31:54 maria kernel: ? show_regs+0x54/0x58
> Sep 12 10:31:54 maria kernel: ? __warn+0x6b/0xd4
> Sep 12 10:31:54 maria kernel: ? preempt_count_sub+0x56/0x90
> Sep 12 10:31:54 maria kernel: ? report_bug+0x103/0x158
> Sep 12 10:31:54 maria kernel: ? exc_overflow+0x30/0x30
> Sep 12 10:31:54 maria kernel: ? handle_bug+0x20/0x48
> Sep 12 10:31:54 maria kernel: ? exc_invalid_op+0x18/0x54
> Sep 12 10:31:54 maria kernel: ? handle_exception+0xf9/0xf9
> Sep 12 10:31:54 maria kernel: ? exc_overflow+0x30/0x30
> Sep 12 10:31:54 maria kernel: ? preempt_count_sub+0x56/0x90
> Sep 12 10:31:54 maria kernel: ? exc_overflow+0x30/0x30
> Sep 12 10:31:54 maria kernel: ? preempt_count_sub+0x56/0x90
> Sep 12 10:31:54 maria kernel: ? _raw_spin_unlock_irqrestore+0x13/0x30
> Sep 12 10:31:54 maria kernel: ? ata_scsi_dev_rescan+0x13f/0x16c
> Sep 12 10:31:54 maria kernel: ? process_one_work+0xf6/0x204
> Sep 12 10:31:54 maria kernel: ? worker_thread+0x2b8/0x3ac
> Sep 12 10:31:54 maria kernel: ? preempt_count_add+0x59/0x88
> Sep 12 10:31:54 maria kernel: ? _raw_spin_lock_irqsave+0x11/0x38
> Sep 12 10:31:54 maria kernel: ? kthread+0xd8/0x100
> Sep 12 10:31:54 maria kernel: ? mod_delayed_work_on+0x74/0x74
> Sep 12 10:31:54 maria kernel: ? kthread_complete_and_exit+0x14/0x14
> Sep 12 10:31:54 maria kernel: ? ret_from_fork+0x27/0x38
> Sep 12 10:31:54 maria kernel: ? kthread_complete_and_exit+0x14/0x14
> Sep 12 10:31:54 maria kernel: ? ret_from_fork_asm+0xf/0x14
> Sep 12 10:31:54 maria kernel: ? entry_INT80_32+0xf0/0xf0
> Sep 12 10:31:54 maria kernel: ---[ end trace 0000000000000000 ]---
>
> Any help appreciated!
>
> mfg
> thomas
>