lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Fri, 3 Feb 2023 14:29:54 +0800
From:   kernel test robot <>
To:     "Matthew Wilcox (Oracle)" <>
CC:     <>, <>,
        "Theodore Y . Ts'o" <>,
        "Jaegeuk Kim" <>,
        Eric Biggers <>,
        "Matthew Wilcox (Oracle)" <>,
        <>, <>,
        <>, <>
Subject: Re: [PATCH] fscrypt: Copy the memcg information to the ciphertext


FYI, we noticed BUG:Bad_page_state_in_process due to commit (built with gcc-11):

commit: fc581f48adffe8e6e2f1ae7822b004b0240602b3 ("[PATCH] fscrypt: Copy the memcg information to the ciphertext page")
base: c96618275234ad03d44eafe9f8844305bb44fda4
patch link:
patch subject: [PATCH] fscrypt: Copy the memcg information to the ciphertext page

in testcase: xfstests
version: xfstests-x86_64-fb6575e-1_20230123
with following parameters:

	disk: 4HDD
	fs: f2fs
	test: generic-group-22

test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://

on test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

[   63.714777][ T1373] run fstests generic/440 at 2023-02-03 01:47:05
[   66.322355][ T1973] F2FS-fs (sda4): Found nat_bits in checkpoint
[   66.920249][ T1973] F2FS-fs (sda4): Mounted with checkpoint version = 194d8365
[   66.952346][ T1983] xfs_io (pid 1983) is setting deprecated v1 encryption policy; recommend upgrading to v2.
[   68.956618][ T2010] F2FS-fs (sda4): Found nat_bits in checkpoint
[   69.578430][ T2010] F2FS-fs (sda4): Mounted with checkpoint version = 62a6fc2b
[   69.824624][ T2111] fscrypt: AES-256-CTS-CBC using implementation "cts-cbc-aes-aesni"
[   69.851641][ T1712] fscrypt: AES-256-XTS using implementation "xts-aes-aesni"
[   70.337764][ T2125] F2FS-fs (sda4): Found nat_bits in checkpoint
[   70.927766][ T2125] F2FS-fs (sda4): Mounted with checkpoint version = 62a6fc2e
[   71.349898][ T2167] BUG: Bad page state in process 440  pfn:1803ec
[   71.356070][ T2167] page:00000000a7ddf13f refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1803ec
[   71.366105][ T2167] memcg:ffff8881f31f8000
[   71.370178][ T2167] flags: 0x17ffffc0000000(node=0|zone=2|lastcpupid=0x1fffff)
[   71.377365][ T2167] raw: 0017ffffc0000000 dead000000000100 dead000000000122 0000000000000000
[   71.385759][ T2167] raw: 0000000000000000 0000000000000000 00000000ffffffff ffff8881f31f8000
[   71.394149][ T2167] page dumped because: page still charged to cgroup
[   71.400554][ T2167] Modules linked in: dm_mod f2fs crc32_generic ipmi_devintf ipmi_msghandler btrfs blake2b_generic xor raid6_pq zstd_compress intel_rapl_msr libcrc32c intel_rapl_common sd_mod t10_pi x86_pkg_temp_thermal intel_powerclamp crc64_rocksoft_generic crc64_rocksoft coretemp crc64 sg kvm_intel i915 kvm irqbypass crct10dif_pclmul drm_buddy crc32_pclmul intel_gtt crc32c_intel drm_display_helper ghash_clmulni_intel sha512_ssse3 ttm ahci mei_wdt rapl drm_kms_helper libahci intel_cstate wmi_bmof intel_uncore mei_me syscopyarea sysfillrect i2c_i801 video i2c_smbus mei libata sysimgblt intel_pch_thermal wmi intel_pmc_core acpi_pad drm fuse ip_tables
[   71.457998][ T2167] CPU: 2 PID: 2167 Comm: 440 Tainted: G          I        6.2.0-rc5-00206-gfc581f48adff #2
[   71.467774][ T2167] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, BIOS 1.1.1 10/07/2015
[   71.475821][ T2167] Call Trace:
[   71.478959][ T2167]  <TASK>
[ 71.481754][ T2167] dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) 
[ 71.486091][ T2167] bad_page.cold (mm/page_alloc.c:699) 
[ 71.490341][ T2167] free_pcppages_bulk (mm/page_alloc.c:1598) 
[ 71.495198][ T2167] free_unref_page (arch/x86/include/asm/paravirt.h:596 arch/x86/include/asm/qspinlock.h:57 include/linux/spinlock.h:203 include/linux/spinlock_api_smp.h:142 include/linux/spinlock.h:390 mm/page_alloc.c:3488) 
[ 71.499792][ T2167] __mmdrop (arch/x86/include/asm/mmu_context.h:125 (discriminator 3) kernel/fork.c:796 (discriminator 3)) 
[ 71.503698][ T2167] finish_task_switch+0x486/0x720 
[ 71.509157][ T2167] schedule_tail (arch/x86/include/asm/current.h:41 kernel/sched/core.c:5231) 
[ 71.513408][ T2167] ret_from_fork (arch/x86/entry/entry_64.S:295) 
[   71.517573][ T2167]  </TASK>
[   71.520440][ T2167] Disabling lock debugging due to kernel taint
[   71.668880][ T2169] F2FS-fs (sda4): Found nat_bits in checkpoint
[   72.266606][ T2169] F2FS-fs (sda4): Mounted with checkpoint version = 62a6fc31
[   74.907644][ T2213] F2FS-fs (sda4): Found nat_bits in checkpoint
[   75.506786][ T2213] F2FS-fs (sda4): Mounted with checkpoint version = 62a6fc33
[   75.713226][  T244] generic/440       _check_dmesg: something found in dmesg (see /lkp/benchmarks/xfstests/results//generic/440.dmesg)

Please note that this issue is not 100% reproducible in our tests. We
got about 50% chance to reproduce the issue in multiple rounds of tests.

If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <>
| Link:

To reproduce:

        git clone
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.

0-DAY CI Kernel Test Service

View attachment "config-6.2.0-rc5-00206-gfc581f48adff" of type "text/plain" (172226 bytes)

View attachment "job-script" of type "text/plain" (5629 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (44912 bytes)

View attachment "xfstests" of type "text/plain" (2277 bytes)

View attachment "job.yaml" of type "text/plain" (4717 bytes)

View attachment "reproduce" of type "text/plain" (882 bytes)

Powered by blists - more mailing lists