https://bugs.kde.org/show_bug.cgi?id=525092
Bug ID: 525092
Summary: kded6 in infinite crashloop reading
/proc/self/mountinfo
Classification: Plasma
Product: plasmashell
Version First 6.7.4
Reported In:
Platform: EndeavourOS
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: 1.0
Created attachment 195672
--> https://bugs.kde.org/attachment.cgi?id=195672&action=edit
journalctl -b0 --user -t kded6
DESCRIPTION
Hello,
kded6 is using 100% CPU on 1 core while trying to parse /proc/self/mountinfo
containing line "42 1 0:34 /@ / rw,noatime shared:1 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=256,subvol=/@
"
STEPS TO REPRODUCE
1. use system with btrfs fs setup as seen in fstab
2. login to kde
3. observe kded6 logs
OBSERVED RESULT
kded6 is using 100% CPU on 1 core.
EXPECTED RESULT
no issues with given fs setup.
SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 6.7.4
KDE Frameworks Version: 6.29.0
Qt Version: 6.11.2
Kernel Version: 7.2.2-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 250 w/ Radeon 780M Graphics
Memory: 32 GiB of RAM (30.6 GiB usable)
Graphics Processor: AMD Radeon 780M Graphics
ADDITIONAL INFORMATION
cat /proc/self/mountinfo
42 1 0:34 /@ / rw,noatime shared:1 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=256,subvol=/@
39 42 0:7 / /dev rw,nosuid shared:2 - devtmpfs devtmpfs
rw,size=15994508k,nr_inodes=3998627,mode=755,inode64,huge=advise
41 39 0:26 / /dev/shm rw,nosuid,nodev shared:3 - tmpfs tmpfs
rw,inode64,huge=advise,usrquota
43 39 0:27 / /dev/pts rw,nosuid,noexec,relatime shared:4 - devpts devpts
rw,gid=5,mode=600,ptmxmode=000
44 42 0:25 / /sys rw,nosuid,nodev,noexec,relatime shared:5 - sysfs sysfs rw
45 44 0:8 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:6 -
securityfs securityfs rw
46 44 0:29 / /sys/fs/cgroup rw,nosuid,nodev,noexec,relatime shared:7 - cgroup2
cgroup2 rw,nsdelegate,memory_recursiveprot,memory_hugetlb_accounting
47 44 0:30 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:8 - pstore
none rw
48 44 0:31 / /sys/firmware/efi/efivars rw,nosuid,nodev,noexec,relatime shared:9
- efivarfs efivarfs rw
49 44 0:32 / /sys/fs/bpf rw,nosuid,nodev,noexec,relatime shared:10 - bpf bpf
rw,mode=700
50 44 0:20 / /sys/kernel/config rw,nosuid,nodev,noexec,relatime shared:11 -
configfs configfs rw
51 42 0:24 / /proc rw,nosuid,nodev,noexec,relatime shared:12 - proc proc rw
52 42 0:28 / /run rw,nosuid,nodev shared:13 - tmpfs tmpfs
rw,size=6421868k,nr_inodes=819200,mode=755,inode64,huge=advise
26 51 0:33 / /proc/sys/fs/binfmt_misc rw,relatime shared:14 - autofs systemd-1
rw,fd=43,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=11543
27 44 0:14 / /sys/kernel/tracing rw,nosuid,nodev,noexec,relatime shared:16 -
tracefs tracefs rw
28 44 0:9 / /sys/kernel/debug rw,nosuid,nodev,noexec,relatime shared:15 -
debugfs debugfs rw
29 39 0:22 / /dev/mqueue rw,nosuid,nodev,noexec,relatime shared:17 - mqueue
mqueue rw
30 39 0:37 / /dev/hugepages rw,nosuid,nodev,relatime shared:18 - hugetlbfs
hugetlbfs rw,pagesize=2M
31 44 0:38 / /sys/fs/fuse/connections rw,nosuid,nodev,noexec,relatime shared:19
- fusectl fusectl rw
33 52 0:39 / /run/credentials/systemd-journald.service
rw,nosuid,nodev,noexec,relatime,nosymfollow shared:20 - tmpfs none
ro,size=1024k,nr_inodes=1024,mode=700,inode64,huge=advise,noswap
73 26 0:43 / /proc/sys/fs/binfmt_misc rw,nosuid,nodev,noexec,relatime shared:21
- binfmt_misc binfmt_misc rw
38 42 0:34 /@home /home rw,noatime shared:113 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=257,subvol=/@home
40 42 0:34 /@swap /swap rw,noatime shared:117 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=260,subvol=/@swap
59 42 0:34 /@cache /var/cache rw,noatime shared:121 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=258,subvol=/@cache
63 42 0:34 /@log /var/log rw,noatime shared:125 - btrfs /dev/nvme0n1p2
rw,compress=zstd:3,ssd,discard=async,space_cache=v2,subvolid=259,subvol=/@log
67 42 0:51 / /tmp rw,noatime shared:129 - tmpfs tmpfs rw,inode64,huge=advise
163 42 259:1 / /efi rw,relatime shared:133 - vfat /dev/nvme0n1p1
rw,fmask=0137,dmask=0027,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro
170 52 0:67 / /run/credentials/libvirtd.service
rw,nosuid,nodev,noexec,relatime,nosymfollow shared:530 - tmpfs none
ro,size=1024k,nr_inodes=1024,mode=700,inode64,huge=advise,noswap
601 52 0:80 / /run/user/1000 rw,nosuid,nodev,relatime shared:640 - tmpfs tmpfs
rw,size=3210932k,nr_inodes=802733,mode=700,uid=1000,gid=1000,inode64,huge=advise
681 601 0:81 / /run/user/1000/doc rw,nosuid,nodev,relatime shared:657 -
fuse.portal portal rw,user_id=1000,group_id=1000
cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a device; this may
# be used with UUID= as a more robust way to name devices that works even if
# disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=3EAC-2BA8 /efi vfat
fmask=0137,dmask=0027 0 2
UUID=0c59734a-cd34-4e89-a467-17f582e6b528 / btrfs
subvol=/@,noatime,compress=zstd 0 0
UUID=0c59734a-cd34-4e89-a467-17f582e6b528 /home btrfs
subvol=/@home,noatime,compress=zstd 0 0
UUID=0c59734a-cd34-4e89-a467-17f582e6b528 /var/cache btrfs
subvol=/@cache,noatime,compress=zstd 0 0
UUID=0c59734a-cd34-4e89-a467-17f582e6b528 /var/log btrfs
subvol=/@log,noatime,compress=zstd 0 0
UUID=0c59734a-cd34-4e89-a467-17f582e6b528 /swap btrfs
subvol=/@swap,noatime 0 0
/swap/swapfile swap swap defaults 0 0
tmpfs /tmp tmpfs
defaults,noatime,mode=1777 0 0
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