From: Anand Jain <anand.jain@oracle.com>
To: lkp@lists.01.org
Subject: Re: [btrfs] 0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs_emit
Date: Thu, 21 Oct 2021 23:30:33 +0800 [thread overview]
Message-ID: <a3d16075-7f7b-8bb5-0cee-41fa4be5ce0e@oracle.com> (raw)
In-Reply-To: <20211021133538.GA16330@xsang-OptiPlex-9020>
[-- Attachment #1: Type: text/plain, Size: 6193 bytes --]
On 21/10/2021 21:35, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: 0f807998661ecadb74638c18cbaff8785bb46f8d ("[PATCH 1/2] btrfs: sysfs convert scnprintf and snprintf to use sysfs_emit")
> url: https://github.com/0day-ci/linux/commits/Anand-Jain/provide-fsid-in-sysfs-devinfo/20211019-082356
> base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
>
> in testcase: boot
>
> on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
>
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
>
>
> +----------------------------------------+------------+------------+
> | | 00c9626f46 | 0f80799866 |
> +----------------------------------------+------------+------------+
> | boot_successes | 12 | 0 |
> | boot_failures | 0 | 12 |
> | WARNING:at_fs/sysfs/file.c:#sysfs_emit | 0 | 12 |
> | EIP:sysfs_emit | 0 | 12 |
> +----------------------------------------+------------+------------+
>
>
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <oliver.sang@intel.com>
>
>
> [ 17.140001][ T1] WARNING: CPU: 0 PID: 1 at fs/sysfs/file.c:737 sysfs_emit (fs/sysfs/file.c:737)
> [ 17.141231][ T1] Modules linked in:
> [ 17.141878][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc5-00151-g0f807998661e #2
> [ 17.143180][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
> [ 17.144848][ T1] EIP: sysfs_emit (fs/sysfs/file.c:737)
> [ 17.145557][ T1] Code: e8 76 ec 66 00 83 c4 08 5b 5d c3 ba 01 00 00 00 b8 00 fa 50 cc e8 d1 a9 e2 ff 89 5c 24 04 c7 04 24 b1 88 c7 cb e8 da 0d 14 01 <0f> 0b b8 e8 f9 50 cc 31 c9 c7 04 24 01 00 00 00 ba 01 00 00 00 e8
> All code
> ========
> 0: e8 76 ec 66 00 callq 0x66ec7b
> 5: 83 c4 08 add $0x8,%esp
> 8: 5b pop %rbx
> 9: 5d pop %rbp
> a: c3 retq
> b: ba 01 00 00 00 mov $0x1,%edx
> 10: b8 00 fa 50 cc mov $0xcc50fa00,%eax
> 15: e8 d1 a9 e2 ff callq 0xffffffffffe2a9eb
> 1a: 89 5c 24 04 mov %ebx,0x4(%rsp)
> 1e: c7 04 24 b1 88 c7 cb movl $0xcbc788b1,(%rsp)
> 25: e8 da 0d 14 01 callq 0x1140e04
> 2a:* 0f 0b ud2 <-- trapping instruction
> 2c: b8 e8 f9 50 cc mov $0xcc50f9e8,%eax
> 31: 31 c9 xor %ecx,%ecx
> 33: c7 04 24 01 00 00 00 movl $0x1,(%rsp)
> 3a: ba 01 00 00 00 mov $0x1,%edx
> 3f: e8 .byte 0xe8
>
> Code starting with the faulting instruction
> ===========================================
> 0: 0f 0b ud2
> 2: b8 e8 f9 50 cc mov $0xcc50f9e8,%eax
> 7: 31 c9 xor %ecx,%ecx
> 9: c7 04 24 01 00 00 00 movl $0x1,(%rsp)
> 10: ba 01 00 00 00 mov $0x1,%edx
> 15: e8 .byte 0xe8
> [ 17.148128][ T1] EAX: 00000020 EBX: cce568e0 ECX: 00000000 EDX: 00000000
> [ 17.149078][ T1] ESI: cce54ae0 EDI: cce568e0 EBP: c181fed4 ESP: c181fec8
> [ 17.150009][ T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010296
> [ 17.151159][ T1] CR0: 80050033 CR2: 00000000 CR3: 0c709000 CR4: 000406d0
> [ 17.152227][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
> [ 17.153237][ T1] DR6: fffe0ff0 DR7: 00000400
> [ 17.153964][ T1] Call Trace:
> [ 17.154511][ T1] btrfs_init_sysfs (fs/btrfs/sysfs.c:1310 fs/btrfs/sysfs.c:2023)
> [ 17.155279][ T1] ? tracefs_create_instance_dir (fs/btrfs/super.c:2552)
> [ 17.156161][ T1] init_btrfs_fs (fs/btrfs/super.c:2558)
> [ 17.156848][ T1] do_one_initcall (init/main.c:1303)
> [ 17.157551][ T1] ? parse_args (kernel/params.c:153 kernel/params.c:188)
> [ 17.158265][ T1] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
> [ 17.159070][ T1] kernel_init_freeable (init/main.c:1375 init/main.c:1392 init/main.c:1411 init/main.c:1614)
> [ 17.163787][ T1] ? rest_init (init/main.c:1497)
> [ 17.171751][ T1] kernel_init (init/main.c:1507)
> [ 17.172549][ T1] ? schedule_tail_wrapper (arch/x86/entry/entry_32.S:740)
> [ 17.173320][ T1] ret_from_fork (arch/x86/entry/entry_32.S:775)
> [ 17.174042][ T1] irq event stamp: 2402249
> [ 17.174752][ T1] hardirqs last enabled at (2402257): __up_console_sem (kernel/printk/printk.c:255 (discriminator 1))
> [ 17.176070][ T1] hardirqs last disabled at (2402272): __up_console_sem (kernel/printk/printk.c:253 (discriminator 1))
> [ 17.177397][ T1] softirqs last enabled at (2402270): __do_softirq (kernel/softirq.c:402 kernel/softirq.c:587)
> [ 17.178704][ T1] softirqs last disabled at (2402265): do_softirq_own_stack (arch/x86/kernel/irq_32.c:60 arch/x86/kernel/irq_32.c:149)
> [ 17.180238][ T1] ---[ end trace c9e9be0944a14324 ]---
> [ 17.181055][ T1] ------------[ cut here ]------------
> [ 17.184298][ T1] invalid sysfs_emit: buf:cce568ed
>
>
> To reproduce:
A modload is good enough to reproduce. Unfortunately, I didn't check
the dmesg for Warnings during the hand testing.
Fixed in V2.
Thanks, Anand
>
> # build kernel
> cd linux
> cp config-5.15.0-rc5-00151-g0f807998661e .config
> make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare modules_prepare bzImage
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
>
> # if come across any failure that blocks the test,
> # please remove ~/.lkp and /lkp dir to run from a clean state.
>
>
>
> ---
> 0DAY/LKP+ Test Infrastructure Open Source Technology Center
> https://lists.01.org/hyperkitty/list/lkp(a)lists.01.org Intel Corporation
>
> Thanks,
> Oliver Sang
>
WARNING: multiple messages have this Message-ID (diff)
From: Anand Jain <anand.jain@oracle.com>
To: kernel test robot <oliver.sang@intel.com>
Cc: 0day robot <lkp@intel.com>, LKML <linux-kernel@vger.kernel.org>,
lkp@lists.01.org, linux-btrfs@vger.kernel.org, dsterba@suse.com
Subject: Re: [btrfs] 0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs_emit
Date: Thu, 21 Oct 2021 23:30:33 +0800 [thread overview]
Message-ID: <a3d16075-7f7b-8bb5-0cee-41fa4be5ce0e@oracle.com> (raw)
In-Reply-To: <20211021133538.GA16330@xsang-OptiPlex-9020>
On 21/10/2021 21:35, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: 0f807998661ecadb74638c18cbaff8785bb46f8d ("[PATCH 1/2] btrfs: sysfs convert scnprintf and snprintf to use sysfs_emit")
> url: https://github.com/0day-ci/linux/commits/Anand-Jain/provide-fsid-in-sysfs-devinfo/20211019-082356
> base: https://git.kernel.org/cgit/linux/kernel/git/kdave/linux.git for-next
>
> in testcase: boot
>
> on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
>
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
>
>
> +----------------------------------------+------------+------------+
> | | 00c9626f46 | 0f80799866 |
> +----------------------------------------+------------+------------+
> | boot_successes | 12 | 0 |
> | boot_failures | 0 | 12 |
> | WARNING:at_fs/sysfs/file.c:#sysfs_emit | 0 | 12 |
> | EIP:sysfs_emit | 0 | 12 |
> +----------------------------------------+------------+------------+
>
>
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <oliver.sang@intel.com>
>
>
> [ 17.140001][ T1] WARNING: CPU: 0 PID: 1 at fs/sysfs/file.c:737 sysfs_emit (fs/sysfs/file.c:737)
> [ 17.141231][ T1] Modules linked in:
> [ 17.141878][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.15.0-rc5-00151-g0f807998661e #2
> [ 17.143180][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
> [ 17.144848][ T1] EIP: sysfs_emit (fs/sysfs/file.c:737)
> [ 17.145557][ T1] Code: e8 76 ec 66 00 83 c4 08 5b 5d c3 ba 01 00 00 00 b8 00 fa 50 cc e8 d1 a9 e2 ff 89 5c 24 04 c7 04 24 b1 88 c7 cb e8 da 0d 14 01 <0f> 0b b8 e8 f9 50 cc 31 c9 c7 04 24 01 00 00 00 ba 01 00 00 00 e8
> All code
> ========
> 0: e8 76 ec 66 00 callq 0x66ec7b
> 5: 83 c4 08 add $0x8,%esp
> 8: 5b pop %rbx
> 9: 5d pop %rbp
> a: c3 retq
> b: ba 01 00 00 00 mov $0x1,%edx
> 10: b8 00 fa 50 cc mov $0xcc50fa00,%eax
> 15: e8 d1 a9 e2 ff callq 0xffffffffffe2a9eb
> 1a: 89 5c 24 04 mov %ebx,0x4(%rsp)
> 1e: c7 04 24 b1 88 c7 cb movl $0xcbc788b1,(%rsp)
> 25: e8 da 0d 14 01 callq 0x1140e04
> 2a:* 0f 0b ud2 <-- trapping instruction
> 2c: b8 e8 f9 50 cc mov $0xcc50f9e8,%eax
> 31: 31 c9 xor %ecx,%ecx
> 33: c7 04 24 01 00 00 00 movl $0x1,(%rsp)
> 3a: ba 01 00 00 00 mov $0x1,%edx
> 3f: e8 .byte 0xe8
>
> Code starting with the faulting instruction
> ===========================================
> 0: 0f 0b ud2
> 2: b8 e8 f9 50 cc mov $0xcc50f9e8,%eax
> 7: 31 c9 xor %ecx,%ecx
> 9: c7 04 24 01 00 00 00 movl $0x1,(%rsp)
> 10: ba 01 00 00 00 mov $0x1,%edx
> 15: e8 .byte 0xe8
> [ 17.148128][ T1] EAX: 00000020 EBX: cce568e0 ECX: 00000000 EDX: 00000000
> [ 17.149078][ T1] ESI: cce54ae0 EDI: cce568e0 EBP: c181fed4 ESP: c181fec8
> [ 17.150009][ T1] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010296
> [ 17.151159][ T1] CR0: 80050033 CR2: 00000000 CR3: 0c709000 CR4: 000406d0
> [ 17.152227][ T1] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
> [ 17.153237][ T1] DR6: fffe0ff0 DR7: 00000400
> [ 17.153964][ T1] Call Trace:
> [ 17.154511][ T1] btrfs_init_sysfs (fs/btrfs/sysfs.c:1310 fs/btrfs/sysfs.c:2023)
> [ 17.155279][ T1] ? tracefs_create_instance_dir (fs/btrfs/super.c:2552)
> [ 17.156161][ T1] init_btrfs_fs (fs/btrfs/super.c:2558)
> [ 17.156848][ T1] do_one_initcall (init/main.c:1303)
> [ 17.157551][ T1] ? parse_args (kernel/params.c:153 kernel/params.c:188)
> [ 17.158265][ T1] ? __this_cpu_preempt_check (lib/smp_processor_id.c:67)
> [ 17.159070][ T1] kernel_init_freeable (init/main.c:1375 init/main.c:1392 init/main.c:1411 init/main.c:1614)
> [ 17.163787][ T1] ? rest_init (init/main.c:1497)
> [ 17.171751][ T1] kernel_init (init/main.c:1507)
> [ 17.172549][ T1] ? schedule_tail_wrapper (arch/x86/entry/entry_32.S:740)
> [ 17.173320][ T1] ret_from_fork (arch/x86/entry/entry_32.S:775)
> [ 17.174042][ T1] irq event stamp: 2402249
> [ 17.174752][ T1] hardirqs last enabled at (2402257): __up_console_sem (kernel/printk/printk.c:255 (discriminator 1))
> [ 17.176070][ T1] hardirqs last disabled at (2402272): __up_console_sem (kernel/printk/printk.c:253 (discriminator 1))
> [ 17.177397][ T1] softirqs last enabled at (2402270): __do_softirq (kernel/softirq.c:402 kernel/softirq.c:587)
> [ 17.178704][ T1] softirqs last disabled at (2402265): do_softirq_own_stack (arch/x86/kernel/irq_32.c:60 arch/x86/kernel/irq_32.c:149)
> [ 17.180238][ T1] ---[ end trace c9e9be0944a14324 ]---
> [ 17.181055][ T1] ------------[ cut here ]------------
> [ 17.184298][ T1] invalid sysfs_emit: buf:cce568ed
>
>
> To reproduce:
A modload is good enough to reproduce. Unfortunately, I didn't check
the dmesg for Warnings during the hand testing.
Fixed in V2.
Thanks, Anand
>
> # build kernel
> cd linux
> cp config-5.15.0-rc5-00151-g0f807998661e .config
> make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 olddefconfig prepare modules_prepare bzImage
>
> git clone https://github.com/intel/lkp-tests.git
> cd lkp-tests
> bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
>
> # if come across any failure that blocks the test,
> # please remove ~/.lkp and /lkp dir to run from a clean state.
>
>
>
> ---
> 0DAY/LKP+ Test Infrastructure Open Source Technology Center
> https://lists.01.org/hyperkitty/list/lkp@lists.01.org Intel Corporation
>
> Thanks,
> Oliver Sang
>
next prev parent reply other threads:[~2021-10-21 15:30 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-19 0:22 [PATCH 0/2] provide fsid in sysfs devinfo Anand Jain
2021-10-19 0:22 ` [PATCH 1/2] btrfs: sysfs convert scnprintf and snprintf to use sysfs_emit Anand Jain
2021-10-21 13:35 ` [btrfs] 0f80799866: WARNING:at_fs/sysfs/file.c:#sysfs_emit kernel test robot
2021-10-21 13:35 ` kernel test robot
2021-10-21 15:30 ` Anand Jain [this message]
2021-10-21 15:30 ` Anand Jain
2021-10-21 16:06 ` David Sterba
2021-10-21 16:06 ` David Sterba
2021-10-21 16:18 ` Anand Jain
2021-10-21 16:18 ` Anand Jain
2021-10-21 16:00 ` [PATCH 1/2] btrfs: sysfs convert scnprintf and snprintf to use sysfs_emit David Sterba
2021-10-21 16:15 ` Anand Jain
2021-10-19 0:22 ` [PATCH 2/2] btrfs: sysfs add devinfo/fsid to retrieve fsid from the device Anand Jain
2021-10-20 18:59 ` David Sterba
2021-10-21 4:03 ` Anand Jain
2021-10-21 8:55 ` Anand Jain
2021-10-19 13:57 ` [PATCH 0/2] provide fsid in sysfs devinfo Josef Bacik
2021-10-20 2:26 ` Anand Jain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a3d16075-7f7b-8bb5-0cee-41fa4be5ce0e@oracle.com \
--to=anand.jain@oracle.com \
--cc=lkp@lists.01.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.