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Tue, 13 Jan 2026 10:07:36 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 5wd/AmgZZmkxRwAAD6G6ig (envelope-from ); Tue, 13 Jan 2026 10:07:36 +0000 Message-ID: <1602fcdc-7f3f-4483-9de8-02278a0598c0@suse.cz> Date: Tue, 13 Jan 2026 11:07:35 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [vbabka:b4/sheaves-for-all-rebased] [slab] 9b0317d1c2: xfstests.generic.629.fail To: Oliver Sang Cc: oe-lkp@lists.linux.dev, lkp@intel.com, linux-mm@kvack.org, Harry Yoo References: <202601121022.41666cea-lkp@intel.com> Content-Language: en-US From: Vlastimil Babka In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Stat-Signature: s5keq65s8a1fi5wiytqkjpiba3gk4z4q X-Rspamd-Queue-Id: F259320011 X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1768298857-490072 X-HE-Meta: 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 mywz305B 1vFLISKscJ3bYbCNte1UHVfvqf64cUNduOVxjH5m19yBw3c1Tyku5RQmMy36qJBfdXJlc8f9Bvyt57HbeMGZovMOvGBPAMcGQW+hh50RM8/P9SzwpPln9o2D/IVnNLvgSxk5qrSzHMkRIoEqjPu5eY0s/Au8J01G1NZDM+nRUm2wHiRxhrndkDvufCtOTE2EvoeURWxY/T+EceOdkaAKFz6jy/84b+N96nNEtiE/dvGPaqCbwBZEK7e6xITfECbemP2rN9RqmhPuJwC3i16V+AFCzMm350GBRIg/EG+6SzAvDqo175xETHxyDf1exEe0oOn9tTW2h771Sa4vYnpqaaTpkz1RnqiIwsIdVOp87osK6Qet3dJOCqbn0dJPLCLkQidizFkNl2v4NYwU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 1/13/26 7:34 AM, Oliver Sang wrote: > hi, Vlastimil Babka, >=20 > On Mon, Jan 12, 2026 at 09:34:20AM +0100, Vlastimil Babka wrote: >> On 1/12/26 03:54, kernel test robot wrote: >>> >>> >>> Hello, >>> >>> kernel test robot noticed "xfstests.generic.629.fail" on: >>> >>> commit: 9b0317d1c2ed590d69d39eba701cd3eb082ecc31 ("slab: remove cpu (= partial) slabs usage from allocation paths") >>> https://git.kernel.org/cgit/linux/kernel/git/vbabka/linux.git b4/shea= ves-for-all-rebased >>> >>> in testcase: xfstests >>> version: xfstests-x86_64-df16c93a-1_20260105 >>> with following parameters: >>> >>> disk: 4HDD >>> fs: btrfs >>> test: generic-629 >>> >>> >>> >>> config: x86_64-rhel-9.4-func >>> compiler: gcc-14 >>> test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skyl= ake) with 32G memory >>> >>> (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 >>> | Closes: https://lore.kernel.org/oe-lkp/202601121022.41666cea-lkp@in= tel.com >>> >>> 2026-01-11 11:59:36 cd /lkp/benchmarks/xfstests >>> 2026-01-11 11:59:37 export TEST_DIR=3D/fs/sdb1 >>> 2026-01-11 11:59:37 export TEST_DEV=3D/dev/sdb1 >>> 2026-01-11 11:59:37 export FSTYP=3Dbtrfs >>> 2026-01-11 11:59:37 export SCRATCH_MNT=3D/fs/scratch >>> 2026-01-11 11:59:37 mkdir /fs/scratch -p >>> 2026-01-11 11:59:37 export SCRATCH_DEV_POOL=3D"/dev/sdb2 /dev/sdb3 /d= ev/sdb4" >>> 2026-01-11 11:59:37 echo generic/629 >>> 2026-01-11 11:59:37 ./check generic/629 >>> FSTYP -- btrfs >>> PLATFORM -- Linux/x86_64 lkp-skl-d03 6.19.0-rc1-00010-g9b0317d1c= 2ed #1 SMP PREEMPT_DYNAMIC Sun Jan 11 19:50:05 CST 2026 >>> MKFS_OPTIONS -- /dev/sdb2 >>> MOUNT_OPTIONS -- /dev/sdb2 /fs/scratch >>> >>> generic/629 _check_dmesg: something found in dmesg (see /lkp/b= enchmarks/xfstests/results//generic/629.dmesg) >> >> Hm I didn't notice anything suspicious in dmesg.xz - any idea what thi= s >> refers to? >=20 > sorry, our bot has a bug to capture serial output fully in a consistent= way in > this case. > attached one which includes more information. Thanks > [ 60.803765][ T5096] ------------[ cut here ]------------ > [ 60.809075][ T5096] kmem_cache_destroy bio-240: Slab cache still has= objects when called from bioset_exit+0x307/0x490 Likely the same issue as was reported for the slub kunit tests and hopefully fixed here: https://lore.kernel.org/all/20260112-sheaves-for-all-v2-1-98225cfb50cf@su= se.cz/ > [ 60.809083][ T5096] WARNING: mm/slab_common.c:562 at kmem_cache_dest= roy+0x14e/0x170, CPU#1: dmsetup/5096 > [ 60.829092][ T5096] Modules linked in: dm_mod binfmt_misc snd_hda_co= dec_intelhdmi snd_hda_codec_hdmi snd_ctl_led snd_hda_codec_alc269 snd_hda= _scodec_component snd_hda_codec_realtek_lib snd_hda_codec_generic btrfs b= lake2b libblake2b xor intel_rapl_msr intel_rapl_common zstd_compress raid= 6_pq x86_pkg_temp_thermal intel_powerclamp coretemp i915 sd_mod sg snd_hd= a_intel snd_soc_avs kvm_intel intel_gtt snd_soc_hda_codec platform_profil= e snd_hda_ext_core drm_buddy kvm dell_wmi snd_hda_codec ttm snd_hda_core = snd_intel_dspcfg irqbypass snd_intel_sdw_acpi ghash_clmulni_intel dell_sm= bios rfkill snd_hwdep rapl dcdbas drm_display_helper mei_wdt snd_soc_core= ahci snd_compress dell_wmi_descriptor intel_cstate wmi_bmof snd_pcm dell= _smm_hwmon sparse_keymap cec libahci mei_me snd_timer intel_uncore mei dr= m_client_lib i2c_i801 i2c_smbus snd libata drm_kms_helper pcspkr soundcor= e intel_pch_thermal intel_pmc_core video pmt_telemetry pmt_discovery wmi = pmt_class intel_pmc_ssram_telemetry intel_vsec acpi_pad fuse drm nfnetlin= k > [ 60.917640][ T5096] CPU: 1 UID: 0 PID: 5096 Comm: dmsetup Tainted: G= S I 6.19.0-rc1-00010-g9b0317d1c2ed #1 PREEMPT(voluntary) = > [ 60.930326][ T5096] Tainted: [S]=3DCPU_OUT_OF_SPEC, [I]=3DFIRMWARE_W= ORKAROUND > [ 60.937097][ T5096] Hardware name: Dell Inc. OptiPlex 7040/0Y7WYT, B= IOS 1.1.1 10/07/2015 > [ 60.945162][ T5096] RIP: 0010:kmem_cache_destroy+0x15e/0x170 > [ 60.950802][ T5096] Code: 5b 5d e9 85 47 11 00 c3 cc cc cc cc e8 1b = 1e a2 ff eb 9b 48 8d 3d 42 87 64 04 48 8b 53 68 48 8b 4c 24 10 48 c7 c6 7= 0 09 3e 84 <67> 48 0f b9 3a e9 18 ff ff ff 0f 1f 84 00 00 00 00 00 90 90 = 90 90 > [ 60.970186][ T5096] RSP: 0018:ffffc90004027818 EFLAGS: 00010202 > [ 60.976081][ T5096] RAX: 0000000000000001 RBX: ffff888214f277c0 RCX:= ffffffff8271f597 > [ 60.983898][ T5096] RDX: ffff888111b2d760 RSI: ffffffff843e0970 RDI:= ffffffff8633a210 > [ 60.991688][ T5096] RBP: 0000000000000001 R08: 0000000000000000 R09:= ffffed10fbd98579 > [ 60.999481][ T5096] R10: ffff8887decc2bcf R11: 0000000000002710 R12:= 00000000000000f0 > [ 61.007288][ T5096] R13: ffff888214f277c0 R14: ffff8881e393c0b8 R15:= ffff8881e393c050 > [ 61.015110][ T5096] FS: 00007f8dbc0b7d80(0000) GS:ffff888857975000(= 0000) knlGS:0000000000000000 > [ 61.023865][ T5096] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003= 3 > [ 61.030275][ T5096] CR2: 00007f637994641c CR3: 0000000159b52006 CR4:= 00000000003726f0 > [ 61.038065][ T5096] Call Trace: > [ 61.041194][ T5096] > [ 61.043988][ T5096] bioset_exit+0x307/0x490 > [ 61.048245][ T5096] cleanup_mapped_device+0x8b/0x480 [dm_mod] > [ 61.054102][ T5096] __dm_destroy+0x322/0x550 [dm_mod] > [ 61.059258][ T5096] ? __pfx_dev_remove+0x10/0x10 [dm_mod] > [ 61.064755][ T5096] dev_remove+0x231/0x300 [dm_mod] > [ 61.069715][ T5096] ctl_ioctl+0x380/0x710 [dm_mod] > [ 61.074590][ T5096] ? __pfx_ctl_ioctl+0x10/0x10 [dm_mod] > [ 61.079981][ T5096] ? _raw_spin_lock+0x80/0xe0 > [ 61.084508][ T5096] ? fdget+0x54/0x3b0 > [ 61.088325][ T5096] ? kmem_cache_free+0x294/0x510 > [ 61.093097][ T5096] dm_ctl_ioctl+0xa/0x20 [dm_mod] > [ 61.097970][ T5096] __x64_sys_ioctl+0x135/0x1c0 > [ 61.102568][ T5096] do_syscall_64+0x7b/0x6c0 > [ 61.106933][ T5096] ? do_semtimedop+0x228/0x2a0 > [ 61.111533][ T5096] ? __pfx_ksys_semctl+0x10/0x10 > [ 61.117340][ T5096] ? __pfx_ksys_semctl+0x10/0x10 > [ 61.123145][ T5096] ? __virt_addr_valid+0xc4/0x200 > [ 61.128016][ T5096] ? rcu_segcblist_enqueue+0x1d/0xe0 > [ 61.133159][ T5096] ? __call_rcu_common+0x341/0x950 > [ 61.139137][ T5096] ? kasan_unpoison+0x40/0x70 > [ 61.143648][ T5096] ? __pfx___call_rcu_common+0x10/0x10 > [ 61.149973][ T5096] ? __kasan_slab_alloc+0x2f/0x70 > [ 61.154838][ T5096] ? do_syscall_64+0xb2/0x6c0 > [ 61.159353][ T5096] ? kmem_cache_free+0x2a7/0x510 > [ 61.164142][ T5096] ? fput_close_sync+0xd8/0x190 > [ 61.168831][ T5096] ? fput_close_sync+0xd8/0x190 > [ 61.173537][ T5096] ? __x64_sys_semtimedop+0x153/0x1a0 > [ 61.178749][ T5096] ? __pfx___x64_sys_semtimedop+0x10/0x10 > [ 61.184308][ T5096] ? __x64_sys_close+0x79/0xd0 > [ 61.188919][ T5096] ? do_syscall_64+0xb2/0x6c0 > [ 61.193429][ T5096] ? do_syscall_64+0xb2/0x6c0 > [ 61.197943][ T5096] ? do_syscall_64+0xb2/0x6c0 > [ 61.202453][ T5096] ? irqentry_exit+0x76/0x4d0 > [ 61.206963][ T5096] entry_SYSCALL_64_after_hwframe+0x76/0x7e > [ 61.212686][ T5096] RIP: 0033:0x7f8dbc3eb8db > [ 61.216978][ T5096] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 = 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 0= 0 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 = 00 00 > [ 61.236339][ T5096] RSP: 002b:00007ffdb55284a0 EFLAGS: 00000246 ORIG= _RAX: 0000000000000010 > [ 61.240308][ T259] 2026-01-11 12:02:14.799418 (+0000) -73855.722057= +/- 0.000324 internal-lkp-server 192.168.1.200 s5 no-leap > [ 61.244561][ T5096] RAX: ffffffffffffffda RBX: 00007f8dbc4e2bd6 RCX:= 00007f8dbc3eb8db > [ 61.244563][ T5096] RDX: 000055c5ab615b30 RSI: 00000000c138fd04 RDI:= 0000000000000004 > [ 61.244588][ T259]=20 > [ 61.255911][ T5096] RBP: 00007ffdb55285c0 R08: 00007f8dbc535968 R09:= 00007ffdb5528350 > [ 61.255926][ T5096] R10: 00007f8dbc534d18 R11: 0000000000000246 R12:= 00007f8dbc534d18 > [ 61.264411][ T259] INFO: lkp CACHE_DIR is /opt/rootfs/tmp > [ 61.271491][ T5096] R13: 00007f8dbc534d18 R14: 00007f8dbc534d18 R15:= 00007f8dbc534d18 > [ 61.271495][ T5096] > [ 61.273670][ T259]=20 > [ 61.281448][ T5096] ---[ end trace 0000000000000000 ]--- >=20 >=20 >> >>> Ran: generic/629 >>> Failures: generic/629 >>> Failed 1 of 1 tests >>> >>> >>> >>> >>> The kernel config and materials to reproduce are available at: >>> https://download.01.org/0day-ci/archive/20260112/202601121022.41666ce= a-lkp@intel.com >>> >>> >>> >>