Package: kded5
Version: 5.28.0-1
Followup-For: Bug #879901
Control: severity -1 grave
Raising severity because 6520.81MB is enough to make the OOM killer
kill a browser on a laptop with less than 8GB of RAM, when the user is
running without swap (possibly also with zswap) because he/she is
using an SSD, or to make the system swap so hard that it becomes
unusable. Please see #879898 for Simon McVittie's analysis about how
this issue also causes the user's session's dbus-daemon memory to also
balloon.
Please let me know what I can do to help debug this further, because
I'd like to help solve this asap. This time I triggered the issue on
my desktop. Please note that while my desktop is running a custom
kernel, my laptop is running linux-4.9 shipped in Debian Stretch. I'm
sticking with 4.4 on my Desktop, because linux-4.9 has a couple of
btrfs regressions that haven't yet been patched...I don't take risks
with my primary system.
Relevant output from top:
19242 sten 20 0 6916852 5.320g956 S 0.0 36.5 6:12.07 kded5
2673 sten 20 0 2029908 1.584g264 S 0.0 10.9 4:38.57 dbus-daemon
Full backtrace is attached, created with:
file /usr/bin/kded5
thread apply all backtrace no-filters full
Sincerely,
Nicholas
-- System Information:
Debian Release: 9.1
APT prefers stable-debug
APT policy: (500, 'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.4.102.20171125 (SMP w/4 CPU cores; PREEMPT)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8),
LANGUAGE=en_CA:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages kded5 depends on:
ii libc6 2.24-11+deb9u1
ii libkf5configcore5 5.28.0-2
ii libkf5coreaddons5 5.28.0-2
ii libkf5crash5 5.28.0-1
ii libkf5dbusaddons5 5.28.0-1
ii libkf5service-bin 5.28.0-1
ii libkf5service5 5.28.0-1
ii libqt5core5a 5.7.1+dfsg-3+b1
ii libqt5dbus55.7.1+dfsg-3+b1
ii libqt5gui5 5.7.1+dfsg-3+b1
ii libqt5widgets5 5.7.1+dfsg-3+b1
ii libstdc++6 6.3.0-18
kded5 recommends no packages.
kded5 suggests no packages.
-- no debconf information
Reading symbols from /usr/bin/kded5...Reading symbols from
/usr/lib/debug/.build-id/dc/e41958ff786e956693484065979e08e08734c2.debug...done.
done.
Attaching to program: /usr/bin/kded5, process 19242
[New LWP 19243]
[New LWP 19244]
[New LWP 19249]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
38 ../sysdeps/unix/sysv/linux/x86_64/syscall.S: No such file or directory.
Thread 4 (Thread 0x7f7fde833700 (LWP 19249)):
#0 0x7f8000f827d7 in bind () at ../sysdeps/unix/syscall-template.S:84
No locals.
#1 0x7f8000f9b7bf in __netlink_open (h=h@entry=0x7f7fde831cc0)
at ../sysdeps/unix/sysv/linux/ifaddrs.c:264
nladdr = {nl_family = 16, nl_pad = 0, nl_pid = 0, nl_groups = 0}
addr_len = 3733134480
#2 0x7f8000f9b867 in getifaddrs_internal (ifap=ifap@entry=0x7f7fde831d88)
at ../sysdeps/unix/sysv/linux/ifaddrs.c:332
nh = {fd = 14, pid = 0, seq = 0, nlm_list = 0x0, end_ptr = 0x0}
nlp =
ifas =
i =
newlink =
newaddr =
newaddr_idx =
map_newlink_data =
ifa_data_size = 0
ifa_data_ptr =
result = 0
__PRETTY_FUNCTION__ = "getifaddrs_internal"
#3 0x7f8000f9c510 in __getifaddrs (ifap=0x7f7fde831d88) at
../sysdeps/unix/sysv/linux/ifaddrs.c:831
res = 0
#4 0x7f7ff0d158bb in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#5 0x7f7ff0d10975 in ?? () from
/usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#6 0x7f7ff0d11445 in QNetworkInterface::allInterfaces() ()
from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
No symbol table info available.
#7 0x7f800148e9a6 in ?? () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/bearer/libqgenericbearer.so
No symbol table info available.
#8 0x7f7fff4ffb2e in QMetaMethod::invoke (this=this@entry=0x7f7fde832398,
object=object@entry=
0x55bd466827b0, connectionType=Qt::DirectConnection,
connectionType@entry=3733136416,
returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=...,
val5=..., val6=..., val7=...,
val8=..., val9=...) at kernel/qmetaobject.cpp:
typeNames = {0x0 }
paramCount =
currentThread = 0x55bd466706a0
objectThread = 0x55bd466706a0
param = {0x0 }
idx_offset = 10
callFunction = 0x7f8001499a60
#9 0x7f7fff50558a in QMetaObject::invokeMethod (obj=0x55bd466827b0,
member=0x7f7ff0d77d71 "requestUpdate", type=3733136416, ret=..., val0=...,
val1=..., val2=...,
val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at
