Version-Release number of selected component: systemd-udev-241-8.git9ef65cb.fc30 Additional info: reporter: libreport-2.10.1 backtrace_rating: 4 cmdline: /usr/lib/systemd/systemd-udevd crash_function: __openat_2 executable: /usr/lib/systemd/systemd-udevd journald_cursor: s=7cebf7c1a8a349a4977f8a0cc2717160;i=6018;b=f0ccbe99978f442fac41cbeeb3db7e9b;m=23884ccc97;t=58b9e846b9237;x=a27d1916e90c3d56 kernel: 5.1.5-300.fc30.x86_64 rootdir: / runlevel: N 5 type: CCpp uid: 0 Truncated backtrace: Thread no. 1 (8 frames) #0 __openat_2 at openat_2.c:25 #1 read at /usr/include/bits/unistd.h:44 #2 flush_timer at ../src/libsystemd/sd-event/sd-event.c:2448 #3 sd_event_wait at ../src/libsystemd/sd-event/sd-event.c:3135 #4 sd_event_run at ../src/libsystemd/sd-event/sd-event.c:3284 #5 sd_event_loop at ../src/libsystemd/sd-event/sd-event.c:3313 #6 main_loop at ../src/udev/udevd.c:1729 #7 run at ../src/udev/udevd.c:1849
Created attachment 1610377 [details] File: backtrace
Created attachment 1610378 [details] File: cgroup
Created attachment 1610379 [details] File: core_backtrace
Created attachment 1610380 [details] File: cpuinfo
Created attachment 1610381 [details] File: dso_list
Created attachment 1610382 [details] File: environ
Created attachment 1610383 [details] File: limits
Created attachment 1610384 [details] File: maps
Created attachment 1610385 [details] File: mountinfo
Created attachment 1610386 [details] File: open_fds
Created attachment 1610387 [details] File: proc_pid_status
*** This bug has been marked as a duplicate of bug 1300212 ***
*** This bug has been marked as a duplicate of bug 1747719 ***
The traceback is pretty strange: Program terminated with signal SIGABRT, Aborted. #0 0x00007f55f5be1ec5 in __openat_2 (fd=11, file=0x7ffe29b8c3f0 "\001", oflag=8) at openat_2.c:25 25 if (__OPEN_NEEDS_MODE (oflag)) Thread 1 (Thread 0x7f55f4bf0940 (LWP 5409)): #0 0x00007f55f5be1ec5 in __openat_2 (fd=11, file=0x7ffe29b8c3f0 "\001", oflag=8) at openat_2.c:25 No locals. #1 0x00007f55f58c5d75 in read (__nbytes=<optimized out>, __buf=<optimized out>, __fd=<optimized out>, __fd=<optimized out>, __buf=<optimized out>, __nbytes=<optimized out>) at /usr/include/bits/unistd.h:44 No locals. #2 flush_timer (e=e@entry=0x55b73f806360, fd=<optimized out>, events=<optimized out>, next=next@entry=0x0) at ../src/libsystemd/sd-event/sd-event.c:2448 x = 1 ss = <optimized out> __PRETTY_FUNCTION__ = "flush_timer" #3 0x00007f55f58cc770 in sd_event_wait (e=e@entry=0x55b73f806360, timeout=timeout@entry=18446744073709551615) at ../src/libsystemd/sd-event/sd-event.c:3135 ev_queue = 0x7ffe29b8c410 ev_queue_max = <optimized out> r = <optimized out> m = <optimized out> i = <optimized out> __PRETTY_FUNCTION__ = "sd_event_wait" But looking at the code in flush_timer(), we just call read() with a stack variable being the output, so the output buffer is OK. fd=11 implies that fd is OK. open_fds lists 11:anon_inode:[timerfd]. So I think it got the ABRT signal while blocked on the read, but for some reason gdb misinterprets that as open(). Most likely the two functions were sharing some code as a result of optimization. So closing it as DUPLICATED seems ok. *** This bug has been marked as a duplicate of bug 1300212 ***