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Message-ID: <202512112128.e5e07e77-lkp@intel.com>
Date: Thu, 11 Dec 2025 22:42:33 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Ma Ke <make24@...as.ac.cn>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
Andrew Morton <akpm@...ux-foundation.org>, Jason Gunthorpe <jgg@...pe.ca>,
John Hubbard <jhubbard@...dia.com>, Leon Romanovsky <leon@...nel.org>, Mika
Penttilä <mpenttil@...hat.com>, <linux-mm@...ck.org>,
<oliver.sang@...el.com>
Subject: [linus:master] [mm/hmm/test] fe9d31fd1a:
WARNING:at_drivers/base/core.c:#device_release
Hello,
kernel test robot noticed "WARNING:at_drivers/base/core.c:#device_release" on:
commit: fe9d31fd1ab6cb53e45d9d6b0bb7a62d8365fe2b ("mm/hmm/test: fix error handling in dmirror_device_init")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linus/master 9d588a1140b9ae211581a7a154d0b806d8cd8238]
[test failed on linux-next/master c75caf76ed86bbc15a72808f48f8df1608a0886c]
in testcase: kernel-selftests
version: kernel-selftests-x86_64-67a454e6b1c6-1_20251207
with following parameters:
group: mm
sc_nr_hugepages: 2
config: x86_64-rhel-9.4-kselftests
compiler: gcc-14
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) 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 <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202512112128.e5e07e77-lkp@intel.com
kern :warn : [ 317.654165] [ T37035] ------------[ cut here ]------------
kern :err : [ 317.654650] [ T37035] Device 'hmm_dmirror0' does not have a release() function, it is broken and must be fixed. See Documentation/core-api/kobject.rst.
user :notice: [ 317.655347] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (946234217) == 0 (0)
kern :warn : [ 317.655778] [ T37035] WARNING: CPU: 0 PID: 37035 at drivers/base/core.c:2567 device_release (drivers/base/core.c:2567 (discriminator 2))
kern :warn : [ 317.657485] [ T37035] Modules linked in: test_hmm(-) netconsole intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common btrfs blake2b_generic xor zstd_compress raid6_pq skx_edac_common nfit libnvdimm x86_pkg_temp_thermal intel_powerclamp sd_mod coretemp sg ghash_clmulni_intel snd_hda_codec_alc882 snd_hda_codec_atihdmi rapl snd_hda_codec_realtek_lib intel_cstate snd_hda_codec_generic snd_hda_codec_hdmi amdgpu amdxcp drm_panel_backlight_quirks gpu_sched drm_buddy drm_ttm_helper snd_soc_avs ttm drm_exec drm_suballoc_helper snd_soc_hda_codec snd_hda_intel snd_hda_ext_core drm_display_helper cec snd_hda_codec drm_client_lib snd_soc_core snd_hda_core drm_kms_helper snd_intel_dspcfg snd_intel_sdw_acpi snd_compress ahci video snd_hwdep wmi_bmof mxm_wmi intel_wmi_thunderbolt snd_pcm crc16 intel_uncore nvme libahci snd_timer wdat_wdt pcspkr snd i2c_i801 mei_me nvme_core libata ioatdma i2c_smbus soundcore mei dca wmi binfmt_misc fuse drm nfnetlink sch_fq_codel
user :notice: [ 317.657659] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1601004915) == 0 (0)
kern :warn : [ 317.664626] [ T37035] CPU: 0 UID: 0 PID: 37035 Comm: modprobe Tainted: G S W 6.18.0-rc5-00287-gfe9d31fd1ab6 #1 PREEMPT(voluntary)
kern :warn : [ 317.664633] [ T37035] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
kern :warn : [ 317.665386] [ T37035] Hardware name: Gigabyte Technology Co., Ltd. X299 UD4 Pro/X299 UD4 Pro-CF, BIOS F8a 04/27/2021
kern :warn : [ 317.665388] [ T37035] RIP: 0010:device_release (drivers/base/core.c:2567 (discriminator 2))
user :notice: [ 317.667615] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1835365481) == 0 (0)
kern :warn : [ 317.668021] [ T37035] Code: 48 8d 7b 50 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 88 00 00 00 48 8b 73 50 48 85 f6 74 13 48 c7 c7 80 44 6e 84 e8 27 22 72 fe <0f> 0b e9 0b ff ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1
All code
========
0: 48 8d 7b 50 lea 0x50(%rbx),%rdi
4: 48 89 fa mov %rdi,%rdx
7: 48 c1 ea 03 shr $0x3,%rdx
b: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
f: 0f 85 88 00 00 00 jne 0x9d
15: 48 8b 73 50 mov 0x50(%rbx),%rsi
19: 48 85 f6 test %rsi,%rsi
1c: 74 13 je 0x31
1e: 48 c7 c7 80 44 6e 84 mov $0xffffffff846e4480,%rdi
25: e8 27 22 72 fe call 0xfffffffffe722251
2a:* 0f 0b ud2 <-- trapping instruction
2c: e9 0b ff ff ff jmp 0xffffffffffffff3c
31: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
38: fc ff df
3b: 48 89 da mov %rbx,%rdx
3e: 48 rex.W
3f: c1 .byte 0xc1
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: e9 0b ff ff ff jmp 0xffffffffffffff12
7: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
e: fc ff df
11: 48 89 da mov %rbx,%rdx
14: 48 rex.W
15: c1 .byte 0xc1
kern :warn : [ 317.668026] [ T37035] RSP: 0018:ffffc90002e2fb80 EFLAGS: 00010286
kern :warn : [ 317.669216] [ T37035] RAX: 0000000000000000 RBX: ffffffffc4416c30 RCX: ffffffff81a5aee3
user :notice: [ 317.672000] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1313157699) == 0 (0)
kern :warn : [ 317.672376] [ T37035] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88873aa31680
kern :warn : [ 317.673101] [ T37035] RBP: ffff8881dc954c00 R08: 0000000000000001 R09: fffff520005c5f2a
kern :warn : [ 317.673104] [ T37035] R10: ffffc90002e2f957 R11: 205d353330373354 R12: 0000000000000000
user :notice: [ 317.674900] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (858873683) == 0 (0)
kern :warn : [ 317.675266] [ T37035] R13: 0000000000000000 R14: ffff888257da0000 R15: 0000000000000000
kern :warn : [ 317.675269] [ T37035] FS: 00007fa66ff48640(0000) GS:ffff8887b351f000(0000) knlGS:0000000000000000
kern :warn : [ 317.676656] [ T37035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kern :warn : [ 317.678396] [ T37035] CR2: 00007fff1a350b00 CR3: 0000000893dfe003 CR4: 00000000003706f0
user :notice: [ 317.678579] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1601004915) == 0 (0)
kern :warn : [ 317.679054] [ T37035] Call Trace:
kern :warn : [ 317.679056] [ T37035] <TASK>
kern :warn : [ 317.679793] [ T37035] kobject_cleanup (lib/kobject.c:693)
kern :warn : [ 317.680963] [ T37035] hmm_dmirror_exit (lib/test_hmm.c:190) test_hmm
user :notice: [ 317.681254] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1835365481) == 0 (0)
kern :warn : [ 317.681422] [ T37035] __do_sys_delete_module+0x2fc/0x500
kern :warn : [ 317.682158] [ T37035] ? __pfx___do_sys_delete_module+0x10/0x10
kern :warn : [ 317.683446] [ T37035] ? do_syscall_64 (include/linux/irq-entry-common.h:257 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
user :notice: [ 317.683833] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1887007839) == 0 (0)
kern :warn : [ 317.683846] [ T37035] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113)
kern :warn : [ 317.684567] [ T37035] ? do_sys_openat2 (fs/open.c:1422)
kern :warn : [ 317.685597] [ T37035] ? do_sys_openat2 (fs/open.c:1422)
kern :warn : [ 317.686009] [ T37035] ? do_syscall_64 (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:119 include/linux/entry-common.h:124 arch/x86/entry/syscall_64.c:90)
user :notice: [ 317.686129] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (827344229) == 0 (0)
kern :warn : [ 317.686389] [ T37035] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
kern :warn : [ 317.687120] [ T37035] ? fput_close_sync (fs/file_table.c:571)
kern :warn : [ 317.688153] [ T37035] ? fput_close_sync (fs/file_table.c:571)
kern :warn : [ 317.688565] [ T37035] ? ksys_read (fs/read_write.c:715)
user :notice: [ 317.688677] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1953063476) == 0 (0)
kern :warn : [ 317.688916] [ T37035] ? __pfx_ksys_read (fs/read_write.c:705)
kern :warn : [ 317.689651] [ T37035] ? __pfx___x64_sys_openat (fs/open.c:1463)
kern :warn : [ 317.690749] [ T37035] ? trace_hardirqs_on_prepare (include/trace/events/preemptirq.h:40 (discriminator 2) kernel/trace/trace_preemptirq.c:62 (discriminator 2) kernel/trace/trace_preemptirq.c:59 (discriminator 2))
user :notice: [ 317.691227] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1601200493) == 0 (0)
kern :warn : [ 317.691231] [ T37035] ? do_syscall_64 (include/linux/irq-entry-common.h:257 include/linux/entry-common.h:212 arch/x86/entry/syscall_64.c:100)
kern :warn : [ 317.691953] [ T37035] ? trace_hardirqs_on_prepare (include/trace/events/preemptirq.h:40 (discriminator 2) kernel/trace/trace_preemptirq.c:62 (discriminator 2) kernel/trace/trace_preemptirq.c:59 (discriminator 2))
kern :warn : [ 317.691957] [ T37035] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113)
kern :warn : [ 317.693460] [ T37035] ? trace_hardirqs_on_prepare (include/trace/events/preemptirq.h:40 (discriminator 2) kernel/trace/trace_preemptirq.c:62 (discriminator 2) kernel/trace/trace_preemptirq.c:59 (discriminator 2))
user :notice: [ 317.693514] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1953718895) == 0 (0)
kern :warn : [ 317.693924] [ T37035] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113)
kern :warn : [ 317.694652] [ T37035] ? rcu_read_unlock (include/linux/rcupdate.h:895 (discriminator 1))
kern :warn : [ 317.695684] [ T37035] ? lock_release (include/trace/events/lock.h:69 (discriminator 2) kernel/locking/lockdep.c:5879 (discriminator 2))
kern :warn : [ 317.696080] [ T37035] ? handle_mm_fault (mm/memory.c:6413 mm/memory.c:6566)
user :notice: [ 317.696189] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (7037793) == 0 (0)
kern :warn : [ 317.696481] [ T37035] ? __put_unused_fd (arch/x86/include/asm/bitops.h:222 arch/x86/include/asm/bitops.h:233 include/asm-generic/bitops/instrumented-non-atomic.h:142 fs/file.c:346 fs/file.c:629)
kern :warn : [ 317.697199] [ T37035] ? exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532)
kern :warn : [ 317.698247] [ T37035] ? lock_release (include/trace/events/lock.h:69 (discriminator 2) kernel/locking/lockdep.c:5879 (discriminator 2))
kern :warn : [ 317.698638] [ T37035] ? do_user_addr_fault (arch/x86/include/asm/atomic.h:93 (discriminator 4) include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) include/linux/refcount.h:389 (discriminator 4) include/linux/refcount.h:432 (discriminator 4) include/linux/mmap_lock.h:143 (discriminator 4) include/linux/mmap_lock.h:182 (discriminator 4) arch/x86/mm/fault.c:1338 (discriminator 4))
user :notice: [ 317.698763] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (825383519) == 0 (0)
kern :warn : [ 317.699066] [ T37035] ? irqentry_exit_to_user_mode (include/linux/irq-entry-common.h:257 kernel/entry/common.c:75)
kern :warn : [ 317.699783] [ T37035] ? trace_hardirqs_on_prepare (include/trace/events/preemptirq.h:40 (discriminator 2) kernel/trace/trace_preemptirq.c:62 (discriminator 2) kernel/trace/trace_preemptirq.c:59 (discriminator 2))
kern :warn : [ 317.701011] [ T37035] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
user :notice: [ 317.701460] [ T618] # # # hmm-tests.c:511:anon_write_prot:Expected ptr[i] (1601070439) == 0 (0)
kern :warn : [ 317.701488] [ T37035] RIP: 0033:0x7fa670144417
kern :warn : [ 317.702225] [ T37035] Code: 73 01 c3 48 8b 0d e1 59 0d 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 b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b1 59 0d 00 f7 d8 64 89 01 48
All code
========
0: 73 01 jae 0x3
2: c3 ret
3: 48 8b 0d e1 59 0d 00 mov 0xd59e1(%rip),%rcx # 0xd59eb
a: f7 d8 neg %eax
c: 64 89 01 mov %eax,%fs:(%rcx)
f: 48 83 c8 ff or $0xffffffffffffffff,%rax
13: c3 ret
14: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
1b: 00 00 00
1e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
23: b8 b0 00 00 00 mov $0xb0,%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 b1 59 0d 00 mov 0xd59b1(%rip),%rcx # 0xd59eb
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 b1 59 0d 00 mov 0xd59b1(%rip),%rcx # 0xd59c1
10: f7 d8 neg %eax
12: 64 89 01 mov %eax,%fs:(%rcx)
15: 48 rex.W
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20251211/202512112128.e5e07e77-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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