kernel detect blocked of tasks pool, gvfsd-trash and gphotofs when make ls on mounted mtp fs of android (4.3) phone (Mann zug 3). Debian sid (Debian GNU/Linux 7-updates (n/a)) Kernel version (uname -a): Linux ws1 4.2.0-1-amd64 #1 SMP Debian 4.2.5-1 (2015-10-27) x86_64 GNU/Linux gphotofs --version fusermount version: 2.9.4 using FUSE kernel interface version 7.19 sylog messages: INFO: task pool:12404 blocked for more than 120 seconds. Tainted: G O 4.2.0-1-amd64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this m pool D 0000000000000000 0 12404 1 0x00000000 ffff8802362d2280 0000000000000082 ffff8800bb59c858 ffff88006eece1 ffff88019f0e7db8 ffff88019f0e8000 ffff8801afe17cac ffff8802362d22 00000000ffffffff ffff8801afe17cb0 00007fa620001ea0 ffffffff8154ff Call Trace: [] ? schedule+0x2f/0x70 [] ? schedule_preempt_disabled+0xe/0x20 [] ? __mutex_lock_slowpath+0x85/0x100 [] ? mutex_lock+0x1b/0x30 [] ? walk_component+0x1af/0x460 [] ? path_init+0x1ea/0x3c0 [] ? path_lookupat+0x58/0x100 [] ? filename_lookup+0x95/0x150 [] ? getname_flags+0x6f/0x1e0 [] ? vfs_fstatat+0x49/0x90 [] ? strlcpy+0x35/0x50 [] ? SYSC_newlstat+0x1f/0x40 [] ? SyS_prctl+0x170/0x400 [] ? fpu__restore+0xe1/0x130 [] ? system_call_fast_compare_end+0xc/0x6b INFO: task gphotofs:12407 blocked for more than 120 seconds. Tainted: G O 4.2.0-1-amd64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this m gphotofs D ffffffff8109a1b0 0 12407 1 0x00000000 ffff88019f009400 0000000000000086 ffff8800bb59c858 ffffffff81a145 ffff88013cdcfdb8 ffff88013cdd0000 ffff8801afe17cac ffff88019f0094 00000000ffffffff ffff8801afe17cb0 00007ffce6373860 ffffffff8154ff Call Trace: [] ? schedule+0x2f/0x70 [] ? schedule_preempt_disabled+0xe/0x20 [] ? __mutex_lock_slowpath+0x85/0x100 [] ? mutex_lock+0x1b/0x30 [] ? walk_component+0x1af/0x460 [] ? path_init+0x1ea/0x3c0 [] ? path_lookupat+0x58/0x100 [] ? filename_lookup+0x95/0x150 [] ? getname_flags+0x6f/0x1e0 [] ? vfs_fstatat+0x49/0x90 [] ? SYSC_newstat+0x1c/0x40 [] ? SyS_read+0x42/0xa0 [] ? system_call_fast_compare_end+0xc/0x6b INFO: task gvfsd-trash:8573 blocked for more than 120 seconds. Tainted: G O 4.2.0-1-amd64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this m gvfsd-trash D ffffffff8109a1b0 0 8573 1 0x00000000 ffff8801e8c6a7c0 0000000000000082 ffff8800bb59c858 ffff880236218d ffff880085047db8 ffff880085048000 ffff8801afe17cac ffff8801e8c6a7 00000000ffffffff ffff8801afe17cb0 0000000000407e60 ffffffff8154ff Call Trace: [] ? schedule+0x2f/0x70 [] ? schedule_preempt_disabled+0xe/0x20 [] ? __mutex_lock_slowpath+0x85/0x100 [] ? mutex_lock+0x1b/0x30 [] ? walk_component+0x1af/0x460 [] ? path_init+0x1ea/0x3c0 [] ? path_lookupat+0x58/0x100 [] ? filename_lookup+0x95/0x150 [] ? getname_flags+0x6f/0x1e0 [] ? __fsnotify_update_child_dentry_flags.part. [] ? vfs_fstatat+0x49/0x90 [] ? dput+0x2a/0x220 [] ? SYSC_newlstat+0x1f/0x40 [] ? SyS_inotify_add_watch+0x1af/0x330 [] ? system_call_fast_compare_end+0xc/0x6b

When	Who	Action	New State
2015-11-04	Martial Guex	Comment	Open
2015-11-04	actionparsnip	Answer	Answered
2015-11-05	Martial Guex	Confirm	Solved

Ubuntugphotofs package

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gphotofs package