Messages in this thread | | | Date | Wed, 11 Dec 2013 16:35:25 +0100 | Subject | Re: [fuse-devel] fuse try to freeze with lock held | From | Miklos Szeredi <> |
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On Wed, Nov 27, 2013 at 3:19 AM, Liu, Chuansheng <chuansheng.liu@intel.com> wrote: > Hit the below warning when enabling the CONFIG_DEBUG_LOCK_ALLOC, > __fuse_request_send == > > request_wait_answer == > > wait_event_freezable == > > try_to_freeze() > > But here the inode->i_mutex is hold yet in vfs_readdir(). > > Could anyone give some help? Thanks. >
Mainline doesn't have wait_event_freezable() in fuse. What kernel variant is this?
Thanks, Miklos
> > [ 3148.552435] Freezing user space processes ... [ 3148.557781] > [ 3148.559505] ===================================== > [ 3148.564803] [ BUG: du/21716 still has locks held! ] > [ 3148.570319] 3.10.16-261493-g1308ae2 #8 Tainted: G W O > > [ 3148.586082] #0: (&type->i_mutex_dir_key#3){......}, at: [<c1341dc6>] vfs_readdir+0x66/0xd0 > [ 3148.595967] > [ 3148.595967] stack backtrace: > [ 3148.600875] CPU: 2 PID: 21716 Comm: du Tainted: G W O 3.10.16-261493-g1308ae2 #8 > [ 3148.609973] d7e494e0 d7e494e0 cca6be78 c1b0fccb cca6be90 c12913f1 c1db2cc5 d7e497e4 > [ 3148.618872] 000054d4 cca6beac cca6becc c1440d8b d7e494e0 f2557800 f12acedc 00000000 > [ 3148.627747] 00000000 00000000 d7e494e0 c125f100 cca6beb8 cca6beb8 f12ace40 f2557800 > [ 3148.636614] Call Trace: > [ 3148.639395] [<c1b0fccb>] dump_stack+0x16/0x18 > [ 3148.644375] [<c12913f1>] debug_check_no_locks_held+0x91/0xa0 > [ 3148.650862] [<c1440d8b>] __fuse_request_send+0x14b/0x320 > [ 3148.656961] [<c125f100>] ? wake_up_bit+0x30/0x30 > [ 3148.662242] [<c1440f71>] fuse_request_send+0x11/0x20 > [ 3148.667941] [<c14455a9>] fuse_readdir+0x109/0x690 > [ 3148.673327] [<c1341dc6>] ? vfs_readdir+0x66/0xd0 > [ 3148.678636] [<c1b1bec5>] ? sub_preempt_count+0x45/0x60 > [ 3148.684503] [<c1b15694>] ? mutex_lock_killable_nested+0x214/0x300 > [ 3148.691457] [<c1341b60>] ? SyS_ioctl+0x90/0x90 > [ 3148.696553] [<c1341dc6>] ? vfs_readdir+0x66/0xd0 > [ 3148.701857] [<c1341b60>] ? SyS_ioctl+0x90/0x90 > > > ------------------------------------------------------------------------------ > Rapidly troubleshoot problems before they affect your business. Most IT > organizations don't have a clear picture of how application performance > affects their revenue. With AppDynamics, you get 100% visibility into your > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! > http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk > _______________________________________________ > fuse-devel mailing list > fuse-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/fuse-devel
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