[dolphin] [Bug 430131] There is a delay in deleting files

Thu Dec 10 01:26:57 GMT 2020

https://bugs.kde.org/show_bug.cgi?id=430131

--- Comment #10 from 1107309266 at qq.com ---
I installed the symbols and ran gdb dolphin, and created a dir then deleted it
(repeated twice, there is a delay in the second time).

This is the output of gdb:

GNU gdb (Debian 10.1-1+b1) 10.1
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Type "show copying" and "show warranty" for details.
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For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
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Reading symbols from dolphin...
Reading symbols from
/usr/lib/debug/.build-id/7b/47c4ab78f60be41db19dc829fb1f2f50a64885.debug...
(gdb) r
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff066b700 (LWP 7843)]
[New Thread 0x7fffef8e1700 (LWP 7844)]
[New Thread 0x7fffe6aa6700 (LWP 7845)]
[New Thread 0x7fffe62a5700 (LWP 7846)]
[New Thread 0x7fffe5aa4700 (LWP 7847)]
[New Thread 0x7fffe52a3700 (LWP 7848)]
[New Thread 0x7fffdaf03700 (LWP 7849)]
[New Thread 0x7fffda702700 (LWP 7850)]
[New Thread 0x7fffd9f01700 (LWP 7851)]
[New Thread 0x7fffd9700700 (LWP 7852)]
[New Thread 0x7fffd8eff700 (LWP 7853)]
[New Thread 0x7fffb3fff700 (LWP 7854)]
[New Thread 0x7fffb249a700 (LWP 7855)]
kf.kio.core: "无法进入文件夹 tags:/。"
kf.kio.core: "无法进入文件夹 tags:/。"
kf.kio.core: Url QUrl("file:///home/test") already represents a local file,
cancelling job.
[New Thread 0x7fffb1c99700 (LWP 7862)]
[Thread 0x7fffb1c99700 (LWP 7862) exited]
[New Thread 0x7fffb1c99700 (LWP 7863)]
[New Thread 0x7fffd8149700 (LWP 7864)]
[New Thread 0x7fffb03e6700 (LWP 7865)]
[Thread 0x7fffb03e6700 (LWP 7865) exited]
[Thread 0x7fffd8149700 (LWP 7864) exited]
[Thread 0x7fffb1c99700 (LWP 7863) exited]
[New Thread 0x7fffb1c99700 (LWP 7866)]
[Thread 0x7fffb1c99700 (LWP 7866) exited]
kf.kio.core: Url QUrl("file:///home/test") already represents a local file,
cancelling job.
[New Thread 0x7fffd8149700 (LWP 7867)]
[New Thread 0x7fffb03e6700 (LWP 7868)]
[New Thread 0x7fffb1c99700 (LWP 7869)]
[Thread 0x7fffb03e6700 (LWP 7868) exited]
[Thread 0x7fffd8149700 (LWP 7867) exited]
[Thread 0x7fffb1c99700 (LWP 7869) exited]
[New Thread 0x7fffb1c99700 (LWP 7870)]
[Thread 0x7fffb1c99700 (LWP 7870) exited]
--Type <RET> for more, q to quit, c to continue without paging----q
Quit
(gdb) thread apply all bt

Thread 14 (Thread 0x7fffb249a700 (LWP 7855) "QThread"):
#0  0x00007ffff7deb39f in __GI___poll (fds=0x7fffa4004a60, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3b5ae1e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff3b5af3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5e6970f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5e10b7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c319be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#8  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fffb3fff700 (LWP 7854) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffb3ffec90,
clockid=-1275073520, expected=0, futex_word=0x5555559512c0) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffb3ffec90, clockid=-1275073520,
mutex=0x555555951270, cond=0x555555951298) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x555555951298, mutex=0x555555951270,
abstime=0x7fffb3ffec90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fffd8eff700 (LWP 7853) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffd8efec90,
clockid=-655365104, expected=0, futex_word=0x555555946110) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffd8efec90, clockid=-655365104,
mutex=0x5555559460c0, cond=0x5555559460e8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x5555559460e8, mutex=0x5555559460c0,
abstime=0x7fffd8efec90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fffd9700700 (LWP 7852) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffd96ffc90,
clockid=-646972400, expected=0, futex_word=0x555555945c90) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffd96ffc90, clockid=-646972400,
mutex=0x555555945c40, cond=0x555555945c68) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x555555945c68, mutex=0x555555945c40,
abstime=0x7fffd96ffc90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
--Type <RET> for more, q to quit, c to continue without paging--c
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fffd9f01700 (LWP 7851) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffd9f00c90,
clockid=-638579696, expected=0, futex_word=0x555555945850) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffd9f00c90, clockid=-638579696,
mutex=0x555555945800, cond=0x555555945828) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x555555945828, mutex=0x555555945800,
abstime=0x7fffd9f00c90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fffda702700 (LWP 7850) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffda701c90,
clockid=-630186992, expected=0, futex_word=0x55555593da60) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffda701c90, clockid=-630186992,
mutex=0x55555593da10, cond=0x55555593da38) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x55555593da38, mutex=0x55555593da10,
abstime=0x7fffda701c90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fffdaf03700 (LWP 7849) "Thread (pooled)"):
#0  futex_abstimed_wait_cancelable (private=0, abstime=0x7fffdaf02c90,
clockid=-621794288, expected=0, futex_word=0x55555593e310) at
../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7fffdaf02c90, clockid=-621794288,
mutex=0x55555593e2c0, cond=0x55555593e2e8) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=0x55555593e2e8, mutex=0x55555593e2c0,
abstime=0x7fffdaf02c90) at pthread_cond_wait.c:656
#3  0x00007ffff5c38aa4 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5c36ae1 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#7  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fffe52a3700 (LWP 7848) "dolphin:disk$3"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555555734688) at
../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555555734638,
cond=0x555555734660) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555555734660, mutex=0x555555734638) at
pthread_cond_wait.c:638
#3  0x00007fffecd2354b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fffecd23017 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fffe5aa4700 (LWP 7847) "dolphin:disk$2"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555555734688) at
../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555555734638,
cond=0x555555734660) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555555734660, mutex=0x555555734638) at
pthread_cond_wait.c:638
#3  0x00007fffecd2354b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fffecd23017 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fffe62a5700 (LWP 7846) "dolphin:disk$1"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555555734688) at
../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555555734638,
cond=0x555555734660) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555555734660, mutex=0x555555734638) at
pthread_cond_wait.c:638
#3  0x00007fffecd2354b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fffecd23017 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fffe6aa6700 (LWP 7845) "dolphin:disk$0"):
#0  futex_wait_cancelable (private=0, expected=0, futex_word=0x555555734688) at
../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x555555734638,
cond=0x555555734660) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x555555734660, mutex=0x555555734638) at
pthread_cond_wait.c:638
#3  0x00007fffecd2354b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007fffecd23017 in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fffef8e1700 (LWP 7844) "QDBusConnection"):
#0  0x00007ffff7deb39f in __GI___poll (fds=0x7fffe0012b20, nfds=5, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3b5ae1e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff3b5af3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5e6970f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5e10b7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5c319be in QThread::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff60c7a27 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#9  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ffff066b700 (LWP 7843) "QXcbEventQueue"):
#0  0x00007ffff7deb39f in __GI___poll (fds=0x7ffff066ac28, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff479cd02 in ?? () from /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ffff479e98a in xcb_wait_for_event () from
/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ffff0a4e260 in ?? () from /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ffff5c32b01 in ?? () from /lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff4566ea7 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#6  0x00007ffff7df5d8f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ffff0e5a880 (LWP 7839) "dolphin"):
#0  0x00007ffff7deb39f in __GI___poll (fds=0x555555e3b4e0, nfds=11,
timeout=18350) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ffff3b5ae1e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffff3b5af3f in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffff5e6970f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ffff5e10b7b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ffff5e18df0 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ffff7f06255 in kdemain (argc=<optimized out>, argv=0x7fffffffde98)
at ./src/main.cpp:206
#7  0x00007ffff7d1ed0a in __libc_start_main (main=0x555555555050 <main>,
argc=1, argv=0x7fffffffe058, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffffffe048) at ../csu/libc-start.c:308
#8  0x000055555555508a in _start ()

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