Date: Sat, 28 Apr 2018 14:01:14 +0000 From: bugzilla-noreply@freebsd.org To: threads@FreeBSD.org Subject: [Bug 227826] FUSE: fuse_main() hangs in pthread_cleanup_pop() Message-ID: <bug-227826-13406@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227826 Bug ID: 227826 Summary: FUSE: fuse_main() hangs in pthread_cleanup_pop() Product: Base System Version: 11.0-RELEASE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: threads Assignee: threads@FreeBSD.org Reporter: ben.rubson@gmail.com Hi, I'm facing an issue where, from time to time, unmounting a FUSE FS, threads hang in pthread_cleanup_pop(). For example with sysutils/fusefs-encfs. When it starts, it enters fuse_main(). And when FS is unmounted, sometimes, main thread hangs in fuse_main(), all threads being stuck in pthread_cleanup_pop(). Here is a backtrace : (gdb) thread apply all bt Thread 2 (Thread 802618000 (LWP 100408/encfs)): #0 0x0000000801da267c in pthread_cleanup_pop () from /lib/libthr.so.3 #1 0x00000008008c8b1b in fuse_session_loop_mt () from /usr/local/lib/libfuse.so.2 #2 0x00000008008cd8c2 in fuse_loop_mt () from /usr/local/lib/libfuse.so.2 #3 0x00000008008d0618 in fuse_main_real () from /usr/local/lib/libfuse.so.2 #4 0x000000000040a246 in ?? () #5 0x0000000000408a8f in ?? () #6 0x00000008006b4000 in ?? () #7 0x0000000000000000 in ?? () Thread 1 (Thread 802c69000 (LWP 101304/encfs)): #0 0x0000000801da267c in pthread_cleanup_pop () from /lib/libthr.so.3 #1 0x0000000801d9f9f3 in pthread_timedjoin_np () from /lib/libthr.so.3 #2 0x000000080069dc72 in _rtld_is_dlopened () from /libexec/ld-elf.so.1 #3 0x000000080069af21 in _rtld_is_dlopened () from /libexec/ld-elf.so.1 #4 0x0000000800698301 in dlopen () from /libexec/ld-elf.so.1 #5 0x0000000801da1f0f in pthread_exit () from /lib/libthr.so.3 #6 0x0000000801da1e3b in pthread_exit () from /lib/libthr.so.3 #7 0x0000000801d94b5d in pthread_create () from /lib/libthr.so.3 #8 0x0000000000000000 in ?? () Here are other similar backtraces : https://pastebin.com/raw/ubxzKck8 https://pastebin.com/raw/FXRy2u22 https://pastebin.com/raw/7CG9BuDq Process then hangs indefinitely, and only exits upon a SIGKILL. I also reported this in sysutils/fusefs-encfs, but does not seem to be a po= rt issue. https://github.com/vgough/encfs/issues/470 Thank you very much for your support ! Best regards, Ben --=20 You are receiving this mail because: You are the assignee for the bug.=
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