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3fcf228b64
generic/299 w/ mode=lfs will cause long time latency of checkpoint, let's dump more information once we hit case. CP merge: - Queued : 0 - Issued : 1 - Total : 1 - Cur time : 9765(ms) - Peak time : 9765(ms) F2FS-fs (vdc): blocked on checkpoint for 9765 ms CPU: 11 UID: 0 PID: 237 Comm: kworker/u128:29 Tainted: G O 6.16.0-rc3+ #409 PREEMPT(voluntary) Tainted: [O]=OOT_MODULE Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: writeback wb_workfn (flush-253:32) Call Trace: <TASK> dump_stack_lvl+0x6e/0xa0 f2fs_issue_checkpoint+0x268/0x280 f2fs_write_node_pages+0x6a/0x2c0 do_writepages+0xd0/0x170 __writeback_single_inode+0x56/0x4c0 writeback_sb_inodes+0x22a/0x550 __writeback_inodes_wb+0x4c/0xf0 wb_writeback+0x300/0x400 wb_workfn+0x3de/0x500 process_one_work+0x230/0x5c0 worker_thread+0x1da/0x3d0 kthread+0x10d/0x250 ret_from_fork+0x164/0x190 ret_from_fork_asm+0x1a/0x30 Cc: Jan Prusakowski <jprusakowski@google.com> Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.