Many processes are blocked in fanotify code when fapolicyd is enabled
Issue
-
Many processes are blocked in
fanotify
code whenfapolicyd.service
is enabled. The issue is similar as System hang due to blocked tasks in fanotify code, but there are noINFO: task <process>:<pid> blocked for more than 120 seconds.
messages./proc/<pid>/stack
of the blocked processes show the following stack.[<0>] fanotify_handle_event+0x306/0x360 [<0>] fsnotify+0x253/0x580 [<0>] do_dentry_open+0xce/0x340 [<0>] path_openat+0x53e/0x14f0 [<0>] do_filp_open+0x93/0x100 [<0>] do_sys_open+0x184/0x220 [<0>] do_syscall_64+0x5b/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x65/0xca
Environment
- Red Hat Enterprise Linux 8 and later
- fapolicyd
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