I don't know if it's good or not....
I have made one backup good with compression on local hdd.
So, reboot server and I try another backup with no compression and it's halt again...
this is the result of gdb :
root@pve:~# gdb --ex 'handle SIGUSR1 nostop noprint' --ex 'pagination off' --ex 'c' -p $(qm status 100 --verbose | grep pid: | cut -d: -f2)
GNU gdb (Debian 10.1-1.7) 10.1.90.20210103-git
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Attaching to process 1015
[New LWP 1016]
[New LWP 1035]
[New LWP 1036]
[New LWP 1037]
[New LWP 1038]
[New LWP 1041]
[New LWP 2282]
[New LWP 3932]
[New LWP 5569]
[New LWP 14879]
[New LWP 14880]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f3a4d0784f6 in __ppoll (fds=0x561baacab560, nfds=9, timeout=<optimized out>, timeout@entry=0x7ffd90d70b90, sigmask=sigmask@entry=0x0)
at ../sysdeps/unix/sysv/linux/ppoll.c:44
44 ../sysdeps/unix/sysv/linux/ppoll.c: No such file or directory.
Signal Stop Print Pass to program Description
SIGUSR1 No No Yes User defined signal 1
Undefined command: "pagination". Try "help".
Continuing.
[Thread 0x7f38abdff700 (LWP 14880) exited]
[New Thread 0x7f38abdff700 (LWP 15020)]
[Thread 0x7f38abdff700 (LWP 15020) exited]
Thread 1 "kvm" received signal SIGPIPE, Broken pipe.
__libc_sendmsg (flags=0, msg=0x7ffd90d707e0, fd=25) at ../sysdeps/unix/sysv/linux/sendmsg.c:28
28 ../sysdeps/unix/sysv/linux/sendmsg.c: No such file or directory.
(gdb) t a a bt
Thread 11 (Thread 0x7f38b3dff700 (LWP 14879) "iou-wrk-1037"):
#0 0x0000000000000000 in ?? ()
Backtrace stopped: Cannot access memory at address 0x0
Thread 10 (Thread 0x7f3a40dff700 (LWP 5569) "iou-wrk-1036"):
#0 0x0000000000000000 in ?? ()
Backtrace stopped: Cannot access memory at address 0x0
Thread 9 (Thread 0x7f3a41c3d700 (LWP 3932) "iou-wrk-1035"):
#0 0x0000000000000000 in ?? ()
Backtrace stopped: Cannot access memory at address 0x0
Thread 8 (Thread 0x7f38b31ff700 (LWP 2282) "iou-wrk-1038"):
#0 0x0000000000000000 in ?? ()
Backtrace stopped: Cannot access memory at address 0x0
Thread 7 (Thread 0x7f38aa9bf700 (LWP 1041) "kvm"):
#0 futex_wait_cancelable (private=0, expected=0, futex_word=0x561bab0f2c18) at ../sysdeps/nptl/futex-internal.h:186
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x561bab0f2c28, cond=0x561bab0f2bf0) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=cond@entry=0x561bab0f2bf0, mutex=mutex@entry=0x561bab0f2c28) at pthread_cond_wait.c:638
#3 0x0000561ba9c231bb in qemu_cond_wait_impl (cond=0x561bab0f2bf0, mutex=0x561bab0f2c28, file=0x561ba9cab854 "../ui/vnc-jobs.c", line=248) at ../util/qemu-thread-posix.c:195
#4 0x0000561ba9736563 in vnc_worker_thread_loop (queue=0x561bab0f2bf0) at ../ui/vnc-jobs.c:248
#5 0x0000561ba9737228 in vnc_worker_thread (arg=arg@entry=0x561bab0f2bf0) at ../ui/vnc-jobs.c:361
#6 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f38aa9ba3f0) at ../util/qemu-thread-posix.c:556
#7 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 6 (Thread 0x7f38b31ff700 (LWP 1038) "kvm"):
#0 0x00007f3a4d079cc7 in ioctl () at ../sysdeps/unix/syscall-template.S:120
#1 0x0000561ba9aaff87 in kvm_vcpu_ioctl (cpu=cpu@entry=0x561baaced4a0, type=type@entry=44672) at ../accel/kvm/kvm-all.c:3027
#2 0x0000561ba9ab00f1 in kvm_cpu_exec (cpu=cpu@entry=0x561baaced4a0) at ../accel/kvm/kvm-all.c:2853
#3 0x0000561ba9ab15bd in kvm_vcpu_thread_fn (arg=arg@entry=0x561baaced4a0) at ../accel/kvm/kvm-accel-ops.c:49
#4 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f38b31fa3f0) at ../util/qemu-thread-posix.c:556
#5 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 5 (Thread 0x7f38b3dff700 (LWP 1037) "kvm"):
#0 0x00007f3a4d079cc7 in ioctl () at ../sysdeps/unix/syscall-template.S:120
#1 0x0000561ba9aaff87 in kvm_vcpu_ioctl (cpu=cpu@entry=0x561baacdfab0, type=type@entry=44672) at ../accel/kvm/kvm-all.c:3027
#2 0x0000561ba9ab00f1 in kvm_cpu_exec (cpu=cpu@entry=0x561baacdfab0) at ../accel/kvm/kvm-all.c:2853
#3 0x0000561ba9ab15bd in kvm_vcpu_thread_fn (arg=arg@entry=0x561baacdfab0) at ../accel/kvm/kvm-accel-ops.c:49
#4 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f38b3dfa3f0) at ../util/qemu-thread-posix.c:556
#5 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
--Type <RET> for more, q to quit, c to continue without paging--c
#6 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 4 (Thread 0x7f3a40dff700 (LWP 1036) "kvm"):
#0 __lll_lock_wait (futex=futex@entry=0x561baa1b86a0 <qemu_global_mutex>, private=0) at lowlevellock.c:52
#1 0x00007f3a4d157843 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x561baa1b86a0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:80
#2 0x0000561ba9c22984 in qemu_mutex_lock_impl (mutex=0x561baa1b86a0 <qemu_global_mutex>, file=0x561ba9d6be9f "../softmmu/physmem.c", line=2752) at ../util/qemu-thread-posix.c:80
#3 0x0000561ba99c723e in qemu_mutex_lock_iothread_impl (file=file@entry=0x561ba9d6be9f "../softmmu/physmem.c", line=line@entry=2752) at ../softmmu/cpus.c:493
#4 0x0000561ba99ce2b1 in prepare_mmio_access (mr=0x561babb32040) at ../softmmu/physmem.c:2752
#5 flatview_read_continue (fv=fv@entry=0x7f38ac04d770, addr=addr@entry=4272361780, attrs=..., ptr=ptr@entry=0x7f3a4265b028, len=len@entry=4, addr1=<optimized out>, l=<optimized out>, mr=0x561babb32040) at ../softmmu/physmem.c:2844
#6 0x0000561ba99ce3a7 in flatview_read (fv=0x7f38ac04d770, addr=4272361780, attrs=..., buf=0x7f3a4265b028, len=4) at ../softmmu/physmem.c:2885
#7 0x0000561ba99ce806 in address_space_read_full (len=<optimized out>, buf=0x0, attrs=..., addr=<optimized out>, as=<optimized out>) at ../softmmu/physmem.c:2898
#8 address_space_rw (as=<optimized out>, addr=<optimized out>, attrs=..., attrs@entry=..., buf=buf@entry=0x7f3a4265b028, len=<optimized out>, is_write=<optimized out>) at ../softmmu/physmem.c:2926
#9 0x0000561ba9ab0290 in kvm_cpu_exec (cpu=cpu@entry=0x561baacd1f50) at ../accel/kvm/kvm-all.c:2903
#10 0x0000561ba9ab15bd in kvm_vcpu_thread_fn (arg=arg@entry=0x561baacd1f50) at ../accel/kvm/kvm-accel-ops.c:49
#11 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f3a40dfa3f0) at ../util/qemu-thread-posix.c:556
#12 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#13 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 3 (Thread 0x7f3a41c3d700 (LWP 1035) "kvm"):
#0 0x00007f3a4d079cc7 in ioctl () at ../sysdeps/unix/syscall-template.S:120
#1 0x0000561ba9aaff87 in kvm_vcpu_ioctl (cpu=cpu@entry=0x561baac9d6d0, type=type@entry=44672) at ../accel/kvm/kvm-all.c:3027
#2 0x0000561ba9ab00f1 in kvm_cpu_exec (cpu=cpu@entry=0x561baac9d6d0) at ../accel/kvm/kvm-all.c:2853
#3 0x0000561ba9ab15bd in kvm_vcpu_thread_fn (arg=arg@entry=0x561baac9d6d0) at ../accel/kvm/kvm-accel-ops.c:49
#4 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f3a41c383f0) at ../util/qemu-thread-posix.c:556
#5 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 2 (Thread 0x7f3a4253f700 (LWP 1016) "kvm"):
#0 __lll_lock_wait (futex=futex@entry=0x561baa1b86a0 <qemu_global_mutex>, private=0) at lowlevellock.c:52
#1 0x00007f3a4d157843 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x561baa1b86a0 <qemu_global_mutex>) at ../nptl/pthread_mutex_lock.c:80
#2 0x0000561ba9c22984 in qemu_mutex_lock_impl (mutex=0x561baa1b86a0 <qemu_global_mutex>, file=0x561ba9dfa585 "../util/rcu.c", line=269) at ../util/qemu-thread-posix.c:80
#3 0x0000561ba99c723e in qemu_mutex_lock_iothread_impl (file=file@entry=0x561ba9dfa585 "../util/rcu.c", line=line@entry=269) at ../softmmu/cpus.c:493
#4 0x0000561ba9c2c13e in call_rcu_thread (opaque=opaque@entry=0x0) at ../util/rcu.c:269
#5 0x0000561ba9c227c9 in qemu_thread_start (args=0x7f3a4253a3f0) at ../util/qemu-thread-posix.c:556
#6 0x00007f3a4d154ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#7 0x00007f3a4d082def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7f3a426aa1c0 (LWP 1015) "kvm"):
#0 __libc_sendmsg (flags=0, msg=0x7ffd90d707e0, fd=25) at ../sysdeps/unix/sysv/linux/sendmsg.c:28
#1 __libc_sendmsg (fd=25, msg=msg@entry=0x7ffd90d707e0, flags=flags@entry=0) at ../sysdeps/unix/sysv/linux/sendmsg.c:25
#2 0x0000561ba9ae3c59 in qio_channel_socket_writev (ioc=<optimized out>, iov=0x7ffd90d708d0, niov=1, fds=0x0, nfds=140727033464800, errp=0x0) at ../io/channel-socket.c:561
#3 0x0000561ba9ba4646 in io_channel_send_full (ioc=0x561bab062e90, buf=buf@entry=0x561baabace40, len=len@entry=123, fds=0x0, nfds=0) at ../chardev/char-io.c:123
#4 0x0000561ba9ba7bb1 in tcp_chr_write (chr=0x561baaa026b0, buf=0x561baabace40 "{\"QMP\": {\"version\": {\"qemu\": {\"micro\": 0, \"minor\": 2, \"major\": 6}, \"package\": \"pve-qemu-kvm_6.2.0\"}, \"capabilities\": []}}\r\n", len=123) at ../chardev/char-socket.c:168
#5 0x0000561ba9baac53 in qemu_chr_write_buffer (s=s@entry=0x561baaa026b0, buf=buf@entry=0x561baabace40 "{\"QMP\": {\"version\": {\"qemu\": {\"micro\": 0, \"minor\": 2, \"major\": 6}, \"package\": \"pve-qemu-kvm_6.2.0\"}, \"capabilities\": []}}\r\n", len=123, offset=offset@entry=0x7ffd90d709e0, write_all=write_all@entry=false) at ../chardev/char.c:121
#6 0x0000561ba9bab070 in qemu_chr_write (s=0x561baaa026b0, buf=0x561baabace40 "{\"QMP\": {\"version\": {\"qemu\": {\"micro\": 0, \"minor\": 2, \"major\": 6}, \"package\": \"pve-qemu-kvm_6.2.0\"}, \"capabilities\": []}}\r\n", len=len@entry=123, write_all=write_all@entry=false) at ../chardev/char.c:173
#7 0x0000561ba9ba35ef in qemu_chr_fe_write (be=<optimized out>, buf=<optimized out>, len=len@entry=123) at ../chardev/char-fe.c:42
#8 0x0000561ba9baec5a in monitor_flush_locked (mon=0x561baabcb4a0) at ../monitor/monitor.c:201
#9 0x0000561ba9baf16e in monitor_flush_locked (mon=0x561baabcb4a0) at ../monitor/monitor.c:233
#10 monitor_puts (mon=mon@entry=0x561baabcb4a0, str=0x561baabb67d0 "{\"QMP\": {\"version\": {\"qemu\": {\"micro\": 0, \"minor\": 2, \"major\": 6}, \"package\": \"pve-qemu-kvm_6.2.0\"}, \"capabilities\": []}}\n") at ../monitor/monitor.c:240
#11 0x0000561ba9bb04ad in qmp_send_response (mon=0x561baabcb4a0, rsp=<optimized out>) at ../monitor/qmp.c:118
#12 0x0000561ba9bb0d53 in monitor_qmp_event (event=CHR_EVENT_OPENED, opaque=0x561baabcb4a0) at ../monitor/qmp.c:463
#13 monitor_qmp_event (opaque=0x561baabcb4a0, event=<optimized out>) at ../monitor/qmp.c:452
#14 0x0000561ba9ba8a54 in tcp_chr_new_client (chr=0x561baaa026b0, sioc=0x561bab062e90) at ../chardev/char-socket.c:931
#15 0x0000561ba9aeaaea in qio_net_listener_channel_func (ioc=<optimized out>, condition=<optimized out>, opaque=<optimized out>) at ../io/net-listener.c:54
#16 0x00007f3a4e4dfd6f in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x0000561ba9c3df10 in glib_pollfds_poll () at ../util/main-loop.c:232
#18 os_host_main_loop_wait (timeout=0) at ../util/main-loop.c:255
#19 main_loop_wait (nonblocking=nonblocking@entry=0) at ../util/main-loop.c:531
#20 0x0000561ba99d6d41 in qemu_main_loop () at ../softmmu/runstate.c:726
#21 0x0000561ba97060ae in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at ../softmmu/main.c:50
(gdb)
9:6F:20:92:EB,bridge=vmbr0
ve:000F0D1E:0180AA7F:62AFFE70:vzdump:100:root@pam: