From: David Sterba <dsterba@suse.cz>
To: Yi Zhang <yi.zhang@redhat.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [bug report] kmemleak observed during blktests nbd/009
Date: Wed, 14 Feb 2024 09:31:49 +0100 [thread overview]
Message-ID: <20240214083149.GP355@twin.jikos.cz> (raw)
In-Reply-To: <CAHj4cs_UXGQMwNHgbhw12qDHq_B44bUwiNGkN4unzxc8XqfkdQ@mail.gmail.com>
On Wed, Feb 14, 2024 at 04:14:32PM +0800, Yi Zhang wrote:
> Hi
>
> I found below kmemleak during blktests nbd/009 on 6.8.0-rc3+, please
> help check it and let me know if you need any info/testing for it,
> thanks.
>
> [17763.119952] kmemleak: 12 new suspected memory leaks (see
> /sys/kernel/debug/kmemleak)
>
> # ./check zbd/009
> zbd/009 (test gap zone support with BTRFS) [passed]
> runtime 18.716s ... 18.763s
> # btrfs --version
> btrfs-progs v6.7
>
> unreferenced object 0xffff8881511c53b0 (size 192):
> comm "mount", pid 52857, jiffies 4311808306
> hex dump (first 32 bytes):
> b0 53 1c 51 81 88 ff ff 00 40 1c 51 81 88 ff ff .S.Q.....@.Q....
> 00 00 00 00 00 00 00 00 02 00 00 00 01 00 00 00 ................
> backtrace (crc dcabc4f4):
> [<0000000097edeb04>] __kmalloc+0x3e7/0x520
> [<00000000288772fe>] btrfs_alloc_chunk_map.constprop.0+0x20/0xa0
> [<0000000031efcd2f>] read_one_chunk+0x284/0xb80
> [<00000000e2b85033>] btrfs_read_sys_array+0x24c/0x3d0
> [<0000000003714897>] open_ctree+0x1b0b/0x4be0
> [<000000001f5e8ac7>] btrfs_get_tree+0x101f/0x19d0
> [<0000000088ba3feb>] vfs_get_tree+0x8d/0x350
> [<000000001f72c23c>] fc_mount+0x13/0x90
> [<00000000c75588a6>] btrfs_get_tree+0x91d/0x19d0
> [<0000000088ba3feb>] vfs_get_tree+0x8d/0x350
> [<00000000706df581>] vfs_cmd_create+0xe1/0x290
> [<000000004d6ccd48>] __do_sys_fsconfig+0x607/0xa90
> [<00000000c1740ec7>] do_syscall_64+0x9e/0x190
> [<0000000014a2c6d4>] entry_SYSCALL_64_after_hwframe+0x6e/0x76
Thanks for the report, fixed by
https://lore.kernel.org/linux-btrfs/0bdc61c9216d238eaa4abb6edfb1c5d9c8e86c52.1707775003.git.fdmanana@suse.com/
prev parent reply other threads:[~2024-02-14 8:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-14 8:14 [bug report] kmemleak observed during blktests nbd/009 Yi Zhang
2024-02-14 8:31 ` David Sterba [this message]
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