@Red, I’ve the same:
20:21:27 (+ 0.000269) futex(0x55b8a3fa8cd8, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL, FUTEX_BITSET_MATCH_ANY) = 0 <300.437253> 20:26:27 (+ 300.437766) futex(0x55b8a3fa8c90, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000203>
…with plasma-discover-6.4.4-1.fc42.x86_64, too:
Name : plasma-discover Version : 6.4.4 Release : 1.fc42 Architecture: x86_64 Install Date: Sun 10 Aug 2025 15:03:09 BST Size : 2114878 Signature : RSA/SHA256, Fri 08 Aug 2025 19:42:18 BST, Key ID c8ac4916105ef944 Source RPM : plasma-discover-6.4.4-1.fc42.src.rpm Build Date : Thu 07 Aug 2025 01:18:33 BST Build Host : buildvm-x86-28.rdu3.fedoraproject.org Packager : Fedora Project Vendor : Fedora Project
What’s of note is:
20:26:35 (+ 0.000735) write(2, "kf.dbusaddons: Failed to registe"..., 128kf.dbusaddons: Failed to register name 'org.kde.discover' with DBUS - does this process have permission to use the name, and do ) = 128 <0.000301> 20:26:35 (+ 0.000850) write(2, "no other processes own it alread"..., 35no other processes own it already? ) = 35 <0.000312>
…which would explain crash-stats.mozilla.org/report/index/6370126b-b983-4889-a7ca-a17b90250626, too. [1] Does anyone wish to file a bug? [2]
@gcarlo_f, that works! Thank you. I should have run perf record --debuginfod --call-graph dwarf plasma-discover before running this, because it works now.