From: "Ondřej Jirman" <megi@xff.cz>
To: Chao Yu <yuchao0@huawei.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] Writes stoped working on f2fs after the compression support was added
Date: Mon, 24 Feb 2020 15:03:49 +0100 [thread overview]
Message-ID: <20200224140349.74yagjdwewmclx4v@core.my.home> (raw)
In-Reply-To: <20200224135837.k54ke4ppca26ibec@core.my.home>
On Mon, Feb 24, 2020 at 02:58:37PM +0100, megi xff wrote:
> Hello,
>
> On Mon, Feb 24, 2020 at 06:41:03PM +0800, Chao Yu wrote:
> > On 2020/2/24 18:37, Chao Yu wrote:
> > > Hi,
> > >
> > > Thanks for the report.
> > >
> > > Could you dump all other task stack info via "echo "t" > /proc/sysrq-trigger"?
> > >
> > >>
> > >> [ 246.758021] INFO: task kworker/u16:1:58 blocked for more than 122 seconds.
> > >> [ 246.758040] Not tainted 5.6.0-rc2-00590-g9983bdae4974e #11
> > >> [ 246.758044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> > >> [ 246.758052] kworker/u16:1 D 0 58 2 0x00000000
> > >> [ 246.758090] Workqueue: writeback wb_workfn (flush-179:0)
> > >> [ 246.758099] Backtrace:
> > >> [ 246.758121] [<c0912b90>] (__schedule) from [<c0913234>] (schedule+0x78/0xf4)
> > >> [ 246.758130] r10:da644000 r9:00000000 r8:da645a60 r7:da283e10 r6:00000002 r5:da644000
> > >> [ 246.758132] r4:da4d3600
> > >> [ 246.758148] [<c09131bc>] (schedule) from [<c017ec74>] (rwsem_down_write_slowpath+0x24c/0x4c0)
> > >> [ 246.758152] r5:00000001 r4:da283e00
> > >> [ 246.758161] [<c017ea28>] (rwsem_down_write_slowpath) from [<c0915f2c>] (down_write+0x6c/0x70)
> > >> [ 246.758167] r10:da283e00 r9:da645d80 r8:d9ed0000 r7:00000001 r6:00000000 r5:eff213b0
> > >> [ 246.758169] r4:da283e00
> > >> [ 246.758187] [<c0915ec0>] (down_write) from [<c0435b80>] (f2fs_write_single_data_page+0x608/0x7ac)
> > >
> > > I'm not sure what is this semaphore, I suspect this is F2FS_I(inode)->i_sem, in order to make
> > > sure of this, can you help to add below function, and use them to replace
> > > all {down,up}_{write,read}(&.i_sem) invoking? then reproduce this issue and catch the log.
> >
> > Sorry, just forgot attaching below function.
> >
> > void inode_down_write(struct inode *inode)
> > {
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > down_write(&F2FS_I(inode)->i_sem);
> > }
> >
> > void inode_up_write(struct inode *inode)
> > {
> > up_write(&F2FS_I(inode)->i_sem);
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > }
> >
> > void inode_down_read(struct inode *inode)
> > {
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > down_read(&F2FS_I(inode)->i_sem);
> > }
> >
> > void inode_up_read(struct inode *inode)
> > {
> > up_read(&F2FS_I(inode)->i_sem);
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > }
> >
>
> Here's the log and vmlinux file that may help mapping the code addresses back to
> code, hope it helps:
>
> https://megous.com/dl/tmp/f2fs-dmesg-log
> https://megous.com/dl/tmp/f2fs-log-build-artifacts.tar.gz
Just by a looks of it:
root@tbs2[/proc/sys/kernel] # dmesg | grep up_write | wc -l
324
root@tbs2[/proc/sys/kernel] # dmesg | grep down_write | wc -l
347
there seems to be a mismatch of lock/unlock counts.
root@tbs2[/proc/sys/kernel] # dmesg | grep down_read | wc -l
16
root@tbs2[/proc/sys/kernel] # dmesg | grep up_read | wc -l
16
regards,
o.
> thank you,
> o.
>
> > > Thanks,
> > >
> > >> [ 246.758190] r5:eff213b0 r4:da283c60
> > >> [ 246.758198] [<c0435578>] (f2fs_write_single_data_page) from [<c0435fd8>] (f2fs_write_cache_pages+0x2b4/0x7c4)
> > >> [ 246.758204] r10:da645c28 r9:da283d60 r8:da283c60 r7:0000000f r6:da645d80 r5:00000001
> > >> [ 246.758206] r4:eff213b0
> > >> [ 246.758214] [<c0435d24>] (f2fs_write_cache_pages) from [<c043682c>] (f2fs_write_data_pages+0x344/0x35c)
> > >> [ 246.758220] r10:00000000 r9:d9ed002c r8:d9ed0000 r7:00000004 r6:da283d60 r5:da283c60
> > >> [ 246.758223] r4:da645d80
> > >> [ 246.758238] [<c04364e8>] (f2fs_write_data_pages) from [<c0267ee8>] (do_writepages+0x3c/0xd4)
> > >> [ 246.758244] r10:0000000a r9:c0e03d00 r8:00000c00 r7:c0264ddc r6:da645d80 r5:da283d60
> > >> [ 246.758246] r4:da283c60
> > >> [ 246.758254] [<c0267eac>] (do_writepages) from [<c0310cbc>] (__writeback_single_inode+0x44/0x454)
> > >> [ 246.758259] r7:da283d60 r6:da645eac r5:da645d80 r4:da283c60
> > >> [ 246.758266] [<c0310c78>] (__writeback_single_inode) from [<c03112d0>] (writeback_sb_inodes+0x204/0x4b0)
> > >> [ 246.758272] r10:0000000a r9:c0e03d00 r8:da283cc8 r7:da283c60 r6:da645eac r5:da283d08
> > >> [ 246.758274] r4:d9dc9848
> > >> [ 246.758281] [<c03110cc>] (writeback_sb_inodes) from [<c03115cc>] (__writeback_inodes_wb+0x50/0xe4)
> > >> [ 246.758287] r10:da3797a8 r9:c0e03d00 r8:d9dc985c r7:da645eac r6:00000000 r5:d9dc9848
> > >> [ 246.758289] r4:da5a8800
> > >> [ 246.758296] [<c031157c>] (__writeback_inodes_wb) from [<c03118f4>] (wb_writeback+0x294/0x338)
> > >> [ 246.758302] r10:fffbf200 r9:da644000 r8:c0e04e64 r7:d9dc9848 r6:d9dc9874 r5:da645eac
> > >> [ 246.758305] r4:d9dc9848
> > >> [ 246.758312] [<c0311660>] (wb_writeback) from [<c0312dac>] (wb_workfn+0x35c/0x54c)
> > >> [ 246.758318] r10:da5f2005 r9:d9dc984c r8:d9dc9948 r7:d9dc9848 r6:00000000 r5:d9dc9954
> > >> [ 246.758321] r4:000031e6
> > >> [ 246.758334] [<c0312a50>] (wb_workfn) from [<c014f2b8>] (process_one_work+0x214/0x544)
> > >> [ 246.758340] r10:da5f2005 r9:00000200 r8:00000000 r7:da5f2000 r6:ef044400 r5:da5eb000
> > >> [ 246.758343] r4:d9dc9954
> > >> [ 246.758350] [<c014f0a4>] (process_one_work) from [<c014f634>] (worker_thread+0x4c/0x574)
> > >> [ 246.758357] r10:ef044400 r9:c0e03d00 r8:ef044418 r7:00000088 r6:ef044400 r5:da5eb014
> > >> [ 246.758359] r4:da5eb000
> > >> [ 246.758368] [<c014f5e8>] (worker_thread) from [<c01564fc>] (kthread+0x144/0x170)
> > >> [ 246.758374] r10:ec9e5e90 r9:dabf325c r8:da5eb000 r7:da644000 r6:00000000 r5:da5fe000
> > >> [ 246.758377] r4:dabf3240
> > >> [ 246.758386] [<c01563b8>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
> > >> [ 246.758391] Exception stack(0xda645fb0 to 0xda645ff8)
> > >> [ 246.758397] 5fa0: 00000000 00000000 00000000 00000000
> > >> [ 246.758402] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> > >> [ 246.758407] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> > >> [ 246.758413] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c01563b8
> > >> [ 246.758416] r4:da5fe000
> > >> .
> > >>
> > >
> > >
> > > _______________________________________________
> > > Linux-f2fs-devel mailing list
> > > Linux-f2fs-devel@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
> > >
WARNING: multiple messages have this Message-ID (diff)
From: "Ondřej Jirman" <megi@xff.cz>
To: Chao Yu <yuchao0@huawei.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] Writes stoped working on f2fs after the compression support was added
Date: Mon, 24 Feb 2020 15:03:49 +0100 [thread overview]
Message-ID: <20200224140349.74yagjdwewmclx4v@core.my.home> (raw)
In-Reply-To: <20200224135837.k54ke4ppca26ibec@core.my.home>
On Mon, Feb 24, 2020 at 02:58:37PM +0100, megi xff wrote:
> Hello,
>
> On Mon, Feb 24, 2020 at 06:41:03PM +0800, Chao Yu wrote:
> > On 2020/2/24 18:37, Chao Yu wrote:
> > > Hi,
> > >
> > > Thanks for the report.
> > >
> > > Could you dump all other task stack info via "echo "t" > /proc/sysrq-trigger"?
> > >
> > >>
> > >> [ 246.758021] INFO: task kworker/u16:1:58 blocked for more than 122 seconds.
> > >> [ 246.758040] Not tainted 5.6.0-rc2-00590-g9983bdae4974e #11
> > >> [ 246.758044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> > >> [ 246.758052] kworker/u16:1 D 0 58 2 0x00000000
> > >> [ 246.758090] Workqueue: writeback wb_workfn (flush-179:0)
> > >> [ 246.758099] Backtrace:
> > >> [ 246.758121] [<c0912b90>] (__schedule) from [<c0913234>] (schedule+0x78/0xf4)
> > >> [ 246.758130] r10:da644000 r9:00000000 r8:da645a60 r7:da283e10 r6:00000002 r5:da644000
> > >> [ 246.758132] r4:da4d3600
> > >> [ 246.758148] [<c09131bc>] (schedule) from [<c017ec74>] (rwsem_down_write_slowpath+0x24c/0x4c0)
> > >> [ 246.758152] r5:00000001 r4:da283e00
> > >> [ 246.758161] [<c017ea28>] (rwsem_down_write_slowpath) from [<c0915f2c>] (down_write+0x6c/0x70)
> > >> [ 246.758167] r10:da283e00 r9:da645d80 r8:d9ed0000 r7:00000001 r6:00000000 r5:eff213b0
> > >> [ 246.758169] r4:da283e00
> > >> [ 246.758187] [<c0915ec0>] (down_write) from [<c0435b80>] (f2fs_write_single_data_page+0x608/0x7ac)
> > >
> > > I'm not sure what is this semaphore, I suspect this is F2FS_I(inode)->i_sem, in order to make
> > > sure of this, can you help to add below function, and use them to replace
> > > all {down,up}_{write,read}(&.i_sem) invoking? then reproduce this issue and catch the log.
> >
> > Sorry, just forgot attaching below function.
> >
> > void inode_down_write(struct inode *inode)
> > {
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > down_write(&F2FS_I(inode)->i_sem);
> > }
> >
> > void inode_up_write(struct inode *inode)
> > {
> > up_write(&F2FS_I(inode)->i_sem);
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > }
> >
> > void inode_down_read(struct inode *inode)
> > {
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > down_read(&F2FS_I(inode)->i_sem);
> > }
> >
> > void inode_up_read(struct inode *inode)
> > {
> > up_read(&F2FS_I(inode)->i_sem);
> > printk("%s from %pS\n", __func__, __builtin_return_address(0));
> > }
> >
>
> Here's the log and vmlinux file that may help mapping the code addresses back to
> code, hope it helps:
>
> https://megous.com/dl/tmp/f2fs-dmesg-log
> https://megous.com/dl/tmp/f2fs-log-build-artifacts.tar.gz
Just by a looks of it:
root@tbs2[/proc/sys/kernel] # dmesg | grep up_write | wc -l
324
root@tbs2[/proc/sys/kernel] # dmesg | grep down_write | wc -l
347
there seems to be a mismatch of lock/unlock counts.
root@tbs2[/proc/sys/kernel] # dmesg | grep down_read | wc -l
16
root@tbs2[/proc/sys/kernel] # dmesg | grep up_read | wc -l
16
regards,
o.
> thank you,
> o.
>
> > > Thanks,
> > >
> > >> [ 246.758190] r5:eff213b0 r4:da283c60
> > >> [ 246.758198] [<c0435578>] (f2fs_write_single_data_page) from [<c0435fd8>] (f2fs_write_cache_pages+0x2b4/0x7c4)
> > >> [ 246.758204] r10:da645c28 r9:da283d60 r8:da283c60 r7:0000000f r6:da645d80 r5:00000001
> > >> [ 246.758206] r4:eff213b0
> > >> [ 246.758214] [<c0435d24>] (f2fs_write_cache_pages) from [<c043682c>] (f2fs_write_data_pages+0x344/0x35c)
> > >> [ 246.758220] r10:00000000 r9:d9ed002c r8:d9ed0000 r7:00000004 r6:da283d60 r5:da283c60
> > >> [ 246.758223] r4:da645d80
> > >> [ 246.758238] [<c04364e8>] (f2fs_write_data_pages) from [<c0267ee8>] (do_writepages+0x3c/0xd4)
> > >> [ 246.758244] r10:0000000a r9:c0e03d00 r8:00000c00 r7:c0264ddc r6:da645d80 r5:da283d60
> > >> [ 246.758246] r4:da283c60
> > >> [ 246.758254] [<c0267eac>] (do_writepages) from [<c0310cbc>] (__writeback_single_inode+0x44/0x454)
> > >> [ 246.758259] r7:da283d60 r6:da645eac r5:da645d80 r4:da283c60
> > >> [ 246.758266] [<c0310c78>] (__writeback_single_inode) from [<c03112d0>] (writeback_sb_inodes+0x204/0x4b0)
> > >> [ 246.758272] r10:0000000a r9:c0e03d00 r8:da283cc8 r7:da283c60 r6:da645eac r5:da283d08
> > >> [ 246.758274] r4:d9dc9848
> > >> [ 246.758281] [<c03110cc>] (writeback_sb_inodes) from [<c03115cc>] (__writeback_inodes_wb+0x50/0xe4)
> > >> [ 246.758287] r10:da3797a8 r9:c0e03d00 r8:d9dc985c r7:da645eac r6:00000000 r5:d9dc9848
> > >> [ 246.758289] r4:da5a8800
> > >> [ 246.758296] [<c031157c>] (__writeback_inodes_wb) from [<c03118f4>] (wb_writeback+0x294/0x338)
> > >> [ 246.758302] r10:fffbf200 r9:da644000 r8:c0e04e64 r7:d9dc9848 r6:d9dc9874 r5:da645eac
> > >> [ 246.758305] r4:d9dc9848
> > >> [ 246.758312] [<c0311660>] (wb_writeback) from [<c0312dac>] (wb_workfn+0x35c/0x54c)
> > >> [ 246.758318] r10:da5f2005 r9:d9dc984c r8:d9dc9948 r7:d9dc9848 r6:00000000 r5:d9dc9954
> > >> [ 246.758321] r4:000031e6
> > >> [ 246.758334] [<c0312a50>] (wb_workfn) from [<c014f2b8>] (process_one_work+0x214/0x544)
> > >> [ 246.758340] r10:da5f2005 r9:00000200 r8:00000000 r7:da5f2000 r6:ef044400 r5:da5eb000
> > >> [ 246.758343] r4:d9dc9954
> > >> [ 246.758350] [<c014f0a4>] (process_one_work) from [<c014f634>] (worker_thread+0x4c/0x574)
> > >> [ 246.758357] r10:ef044400 r9:c0e03d00 r8:ef044418 r7:00000088 r6:ef044400 r5:da5eb014
> > >> [ 246.758359] r4:da5eb000
> > >> [ 246.758368] [<c014f5e8>] (worker_thread) from [<c01564fc>] (kthread+0x144/0x170)
> > >> [ 246.758374] r10:ec9e5e90 r9:dabf325c r8:da5eb000 r7:da644000 r6:00000000 r5:da5fe000
> > >> [ 246.758377] r4:dabf3240
> > >> [ 246.758386] [<c01563b8>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
> > >> [ 246.758391] Exception stack(0xda645fb0 to 0xda645ff8)
> > >> [ 246.758397] 5fa0: 00000000 00000000 00000000 00000000
> > >> [ 246.758402] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> > >> [ 246.758407] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> > >> [ 246.758413] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c01563b8
> > >> [ 246.758416] r4:da5fe000
> > >> .
> > >>
> > >
> > >
> > > _______________________________________________
> > > Linux-f2fs-devel mailing list
> > > Linux-f2fs-devel@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
> > >
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
next prev parent reply other threads:[~2020-02-24 14:03 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-09 22:23 [PATCH 1/6] f2fs: call f2fs_balance_fs outside of locked page Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-09 22:23 ` [PATCH 2/6] f2fs: declare nested quota_sem and remove unnecessary sems Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-10 6:20 ` Chao Yu
2019-12-10 6:20 ` Chao Yu
2019-12-09 22:23 ` [PATCH 3/6] f2fs: keep quota data on write_begin failure Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-10 6:22 ` Chao Yu
2019-12-10 6:22 ` Chao Yu
2019-12-09 22:23 ` [PATCH 4/6] f2fs: should avoid recursive filesystem ops Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-10 6:22 ` Chao Yu
2019-12-10 6:22 ` Chao Yu
2019-12-09 22:23 ` [PATCH 5/6] f2fs: set GFP_NOFS when moving inline dentries Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-10 6:22 ` Chao Yu
2019-12-10 6:22 ` Chao Yu
2019-12-09 22:23 ` [PATCH 6/6] f2fs: set I_LINKABLE early to avoid wrong access by vfs Jaegeuk Kim
2019-12-09 22:23 ` [f2fs-dev] " Jaegeuk Kim
2019-12-10 6:37 ` Chao Yu
2019-12-10 6:37 ` Chao Yu
2019-12-11 1:21 ` Jaegeuk Kim
2019-12-11 1:21 ` Jaegeuk Kim
2019-12-11 1:23 ` Chao Yu
2019-12-11 1:23 ` Chao Yu
2019-12-11 1:31 ` Jaegeuk Kim
2019-12-11 1:31 ` Jaegeuk Kim
2019-12-11 1:42 ` Chao Yu
2019-12-11 1:42 ` Chao Yu
2019-12-12 16:55 ` Jaegeuk Kim
2019-12-12 16:55 ` Jaegeuk Kim
2019-12-10 2:09 ` [f2fs-dev] [PATCH 1/6] f2fs: call f2fs_balance_fs outside of locked page Chao Yu
2019-12-10 2:09 ` Chao Yu
2020-02-22 4:46 ` Ondřej Jirman
2020-02-22 4:46 ` [f2fs-dev] " Ondřej Jirman
2020-02-22 18:17 ` Writes stoped working on f2fs after the compression support was added Ondřej Jirman
2020-02-22 18:17 ` [f2fs-dev] " Ondřej Jirman
2020-02-24 10:37 ` Chao Yu
2020-02-24 10:37 ` [f2fs-dev] " Chao Yu
2020-02-24 10:41 ` Chao Yu
2020-02-24 10:41 ` Chao Yu
2020-02-24 13:58 ` Ondřej Jirman
2020-02-24 13:58 ` Ondřej Jirman
2020-02-24 14:03 ` Ondřej Jirman [this message]
2020-02-24 14:03 ` Ondřej Jirman
2020-02-24 14:31 ` Ondřej Jirman
2020-02-24 14:31 ` Ondřej Jirman
2020-02-25 11:24 ` Chao Yu
2020-02-25 11:24 ` Chao Yu
2020-02-25 11:32 ` Chao Yu
2020-02-25 11:32 ` Chao Yu
2020-02-25 12:08 ` Ondřej Jirman
2020-02-25 12:08 ` Ondřej Jirman
2020-02-25 12:27 ` Ondřej Jirman
2020-02-25 12:27 ` Ondřej Jirman
2020-02-26 1:58 ` Chao Yu
2020-02-26 1:58 ` Chao Yu
2020-02-26 12:11 ` Ondřej Jirman
2020-02-26 12:11 ` Ondřej Jirman
2020-02-26 18:05 ` Ondřej Jirman
2020-02-26 18:05 ` Ondřej Jirman
2020-02-27 2:01 ` Chao Yu
2020-02-27 2:01 ` Chao Yu
2020-03-06 12:02 ` Ondřej Jirman
2020-03-06 12:02 ` Ondřej Jirman
2020-03-06 12:43 ` Ondřej Jirman
2020-03-06 12:43 ` Ondřej Jirman
2020-03-11 9:02 ` Chao Yu
2020-03-11 9:02 ` Chao Yu
2020-03-11 10:33 ` Ondřej Jirman
2020-03-11 10:33 ` Ondřej Jirman
2020-03-11 10:51 ` Chao Yu
2020-03-11 10:51 ` Chao Yu
2020-03-11 11:01 ` Ondřej Jirman
2020-03-11 11:01 ` Ondřej Jirman
2020-03-11 12:13 ` Chao Yu
2020-03-11 17:01 ` Jaegeuk Kim
2020-03-11 17:01 ` Jaegeuk Kim
2020-03-22 10:15 ` Chao Yu
2020-03-22 10:15 ` Chao Yu
2020-02-24 14:20 ` Ondřej Jirman
2020-02-24 14:20 ` Ondřej Jirman
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--in-reply-to=20200224140349.74yagjdwewmclx4v@core.my.home \
--to=megi@xff.cz \
--cc=jaegeuk@kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=yuchao0@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
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