@Till There are two processes running:
$ ps aux | grep cups-browsed | grep -v grep root 2912 0.0 0.0 2892 1708 ? Ss 10:13 0:00 /bin/sh /snap/cups/1047/scripts/run-cups-browsed root 3407 0.0 0.0 2892 892 ? S 10:13 0:00 /bin/sh /snap/cups/1047/scripts/run-cups-browsed None of these relates to what top shows as culprit: 2898 root 20 0 195916 16320 11736 R 197.0 0.1 139:30.91 cupsd $ ps -aux | grep 2898 root 2898 134 0.1 195916 16320 ? Rsl 10:13 141:15 /usr/sbin/cupsd -l $ sudo gbd -p 2898 (gdb) t a a bt (gdb) t a a bt Thread 2 (Thread 0x729b3cc006c0 (LWP 5305) "cupsd"): #0 0x0000729b3f6a3439 in __pthread_rwlock_wrlock_full64 (abstime=0x0, clockid=0, rwlock=0x64af2f2b0270) at ./nptl/pthread_rwlock_common.c:821 #1 ___pthread_rwlock_wrlock (rwlock=0x64af2f2b0270) at ./nptl/pthread_rwlock_wrlock.c:26 #2 0x000064af2d5231a1 in create_local_bg_thread (con=0x64af2f3a1d70) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/ipp.c:5333 #3 0x0000729b3f69ca94 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:447 #4 0x0000729b3f729c3c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78 Thread 1 (Thread 0x729b3e5b1b40 (LWP 2898) "cupsd"): #0 0x0000729b3f71c5ad in __GI___libc_write (nbytes=63, buf=0x64af2f1b07c8, fd=6) at ../sysdeps/unix/sysv/linux/write.c:26 #1 __GI___libc_write (fd=6, buf=0x64af2f1b07c8, nbytes=63) at ../sysdeps/unix/sysv/linux/write.c:24 #2 0x0000729b3f95cf66 in ??? () at /lib/x86_64-linux-gnu/libcups.so.2 #3 0x0000729b3f95d3ea in cupsFileFlush () at /lib/x86_64-linux-gnu/libcups.so.2 #4 0x000064af2d5399f5 in cupsdWriteErrorLog (message=0x64af2f1ae7b0 "[Client 26] Closing connection.", level=8) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/log.c:1276 #5 cupsdWriteErrorLog (level=level@entry=8, message=0x64af2f1ae7b0 "[Client 26] Closing connection.") at /build/cups-0ETlfZ/cups-2.4.7/scheduler/log.c:1220 #6 0x000064af2d539b72 in cupsdLogClient (con=<optimized out>, level=8, message=<optimized out>) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/log.c:540 #7 0x000064af2d50d741 in cupsdCloseClient (con=con@entry=0x64af2f3a1d70) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/client.c:405 #8 0x000064af2d50f071 in cupsdReadClient (con=0x64af2f3a1d70) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/client.c:618 #9 0x000064af2d508469 in cupsdDoSelect (timeout=<optimized out>) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/select.c:477 #10 main (argc=<optimized out>, argv=<optimized out>) at /build/cups-0ETlfZ/cups-2.4.7/scheduler/main.c:855 Thread 1 (process 2912 "run-cups-browse"): #0 0x000075225bf4e7dc in sigsuspend () from target:/lib/x86_64-linux-gnu/libc.so.6 #1 0x00005d1641298ee8 in ?? () #2 0x00005d164129911a in ?? () #3 0x00005d164129e58a in ?? () #4 0x00005d16412a3826 in ?? () #5 0x00005d16412a650f in ?? () #6 0x00005d164129fc00 in ?? () #7 0x00005d16412a4b28 in ?? () #8 0x00005d1641297d53 in ?? () #9 0x000075225bf35d90 in ?? () from target:/lib/x86_64-linux-gnu/libc.so.6 #10 0x000075225bf35e40 in __libc_start_main () from target:/lib/x86_64-linux-gnu/libc.so.6 #11 0x00005d1641297f15 in ?? () Thread 1 (process 3407 "run-cups-browse"): #0 0x000075225bff63ea in wait4 () from target:/lib/x86_64-linux-gnu/libc.so.6 #1 0x00005d1641298ea4 in ?? () #2 0x00005d164129911a in ?? () #3 0x00005d16412a63c0 in ?? () #4 0x00005d164129fc00 in ?? () #5 0x00005d16412a0070 in ?? () #6 0x00005d164129fc00 in ?? () #7 0x00005d16412a48ad in ?? () #8 0x00005d164129fc00 in ?? () #9 0x00005d16412a48ad in ?? () #10 0x00005d164129fc00 in ?? () #11 0x00005d164129fc3a in ?? () #12 0x00005d164129fc00 in ?? () #13 0x00005d16412a4b28 in ?? () #14 0x00005d1641297d53 in ?? () #15 0x000075225bf35d90 in ?? () from target:/lib/x86_64-linux-gnu/libc.so.6 #16 0x000075225bf35e40 in __libc_start_main () from target:/lib/x86_64-linux-gnu/libc.so.6 #17 0x00005d1641297f15 in ?? () -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2049315 Title: cups-browsed running non-stop on two cores To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-browsed/+bug/2049315/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
