Occurred again. This time, I got it right and got a trace on everything:
Output is for "thread apply all bt" in gdb for each pid (other than systemd) in "pstree -sp 42017". It looks like it's definitely stuck inside a network call. PROCESS 42017 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 42017 0.0 0.0 2800 1956 ? Ss Jun02 0:00 /bin/sh /usr/lib/apt/apt.systemd.daily update [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./posix/../sysdeps/unix/sysv/linux/wait4.c. 0x00007d95a7f107a7 in __GI___wait4 (pid=-1, stat_loc=0x7ffce02c6f6c, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30 Thread 1 (Thread 0x7d95a81ec740 (LWP 42017) "apt.systemd.dai"): #0 0x00007d95a7f107a7 in __GI___wait4 (pid=-1, stat_loc=0x7ffce02c6f6c, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30 #1 0x00005ec3c029621d in ?? () #2 0x00005ec3c02964a9 in ?? () #3 0x00005ec3c02a25e9 in ?? () #4 0x00005ec3c02991b0 in ?? () #5 0x00005ec3c02991b0 in ?? () #6 0x00005ec3c0299173 in ?? () #7 0x00005ec3c02991b0 in ?? () #8 0x00005ec3c02a163d in ?? () #9 0x00005ec3c0294d7f in ?? () #10 0x00007d95a7e2a1ca in __libc_start_call_main (main=main@entry=0x5ec3c0294b20, argc=argc@entry=3, argv=argv@entry=0x7ffce02c7678) at ../sysdeps/nptl/libc_start_call_main.h:58 #11 0x00007d95a7e2a28b in __libc_start_main_impl (main=0x5ec3c0294b20, argc=3, argv=0x7ffce02c7678, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffce02c7668) at ../csu/libc-start.c:360 #12 0x00005ec3c0294f35 in ?? () [Inferior 1 (process 42017) detached] PROCESS 42022 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 42022 0.0 0.0 2800 1972 ? S Jun02 0:00 /bin/sh /usr/lib/apt/apt.systemd.daily lock_is_held update [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./posix/../sysdeps/unix/sysv/linux/wait4.c. 0x00007a64ed3107a7 in __GI___wait4 (pid=-1, stat_loc=0x7ffd573d4fcc, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30 Thread 1 (Thread 0x7a64ed602740 (LWP 42022) "apt.systemd.dai"): #0 0x00007a64ed3107a7 in __GI___wait4 (pid=-1, stat_loc=0x7ffd573d4fcc, options=0, usage=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:30 #1 0x00005e13a9a5421d in ?? () #2 0x00005e13a9a544a9 in ?? () #3 0x00005e13a9a605e9 in ?? () #4 0x00005e13a9a571b0 in ?? () #5 0x00005e13a9a5da49 in ?? () #6 0x00005e13a9a5dddf in ?? () #7 0x00005e13a9a6074b in ?? () #8 0x00005e13a9a571b0 in ?? () #9 0x00005e13a9a5736e in ?? () #10 0x00005e13a9a571b0 in ?? () #11 0x00005e13a9a571b0 in ?? () #12 0x00005e13a9a57173 in ?? () #13 0x00005e13a9a57173 in ?? () #14 0x00005e13a9a57173 in ?? () #15 0x00005e13a9a571b0 in ?? () #16 0x00005e13a9a5f63d in ?? () #17 0x00005e13a9a52d7f in ?? () #18 0x00007a64ed22a1ca in __libc_start_call_main (main=main@entry=0x5e13a9a52b20, argc=argc@entry=4, argv=argv@entry=0x7ffd573d5bc8) at ../sysdeps/nptl/libc_start_call_main.h:58 #19 0x00007a64ed22a28b in __libc_start_main_impl (main=0x5e13a9a52b20, argc=4, argv=0x7ffd573d5bc8, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffd573d5bb8) at ../csu/libc-start.c:360 #20 0x00005e13a9a52f35 in ?? () [Inferior 1 (process 42022) detached] PROCESS 42067 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 42067 0.0 0.0 21364 11324 ? S Jun02 0:00 apt-get -qq -y update [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x000074010cb26c3e in __GI___select (nfds=12, readfds=0x7ffc979403f0, writefds=0x7ffc97940370, exceptfds=0x0, timeout=0x7ffc97940300) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x74010d08c880 (LWP 42067) "apt-get"): #0 0x000074010cb26c3e in __GI___select (nfds=12, readfds=0x7ffc979403f0, writefds=0x7ffc97940370, exceptfds=0x0, timeout=0x7ffc97940300) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x000074010d233f27 in pkgAcquire::Run(int) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x000074010d320a55 in AcquireUpdate(pkgAcquire&, int, bool, bool) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #3 0x000074010d320e76 in ListUpdate(pkgAcquireStatus&, pkgSourceList&, int) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #4 0x000074010d3d8385 in DoUpdate() () from /lib/x86_64-linux-gnu/libapt-private.so.0.0 #5 0x000074010d26626f in CommandLine::DispatchArg(CommandLine::Dispatch const*, bool) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #6 0x000074010d3a5396 in DispatchCommandLine(CommandLine&, std::vector<CommandLine::Dispatch, std::allocator<CommandLine::Dispatch> > const&) () from /lib/x86_64-linux-gnu/libapt-private.so.0.0 #7 0x000058456934a13e in ?? () #8 0x000074010ca2a1ca in __libc_start_call_main (main=main@entry=0x58456934a0a0, argc=argc@entry=4, argv=argv@entry=0x7ffc97940e78) at ../sysdeps/nptl/libc_start_call_main.h:58 #9 0x000074010ca2a28b in __libc_start_main_impl (main=0x58456934a0a0, argc=4, argv=0x7ffc97940e78, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffc97940e68) at ../csu/libc-start.c:360 #10 0x000058456934a1d5 in ?? () [Inferior 1 (process 42067) detached] PROCESS 42117 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND _apt 42117 0.0 0.0 18292 7184 ? S Jun02 0:00 /usr/lib/apt/methods/gpgv [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x0000798dc8926c3e in __GI___select (nfds=1, readfds=0x7ffc549f01e0, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x798dc8e81880 (LWP 42117) "gpgv"): #0 0x0000798dc8926c3e in __GI___select (nfds=1, readfds=0x7ffc549f01e0, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x0000798dc8fae38c in WaitFd(int, bool, unsigned long) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x0000798dc8f630f3 in pkgAcqMethod::Run(bool) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #3 0x0000578bf5ecc9fe in ?? () #4 0x0000798dc882a1ca in __libc_start_call_main (main=main@entry=0x578bf5ecc8b0, argc=argc@entry=1, argv=argv@entry=0x7ffc549f06f8) at ../sysdeps/nptl/libc_start_call_main.h:58 #5 0x0000798dc882a28b in __libc_start_main_impl (main=0x578bf5ecc8b0, argc=1, argv=0x7ffc549f06f8, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffc549f06e8) at ../csu/libc-start.c:360 #6 0x0000578bf5eccb85 in ?? () [Inferior 1 (process 42117) detached] PROCESS 42077 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND _apt 42077 0.0 0.0 25460 10960 ? S Jun02 0:00 /usr/lib/apt/methods/http [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x000074c196326c3e in __GI___select (nfds=1, readfds=0x7ffe58e6c540, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x74c19687fa80 (LWP 42077) "http"): #0 0x000074c196326c3e in __GI___select (nfds=1, readfds=0x7ffe58e6c540, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x000074c196d6a38c in WaitFd(int, bool, unsigned long) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x00005a376b2f5c97 in ?? () #3 0x000074c19622a1ca in __libc_start_call_main (main=main@entry=0x5a376b2f5880, argc=argc@entry=1, argv=argv@entry=0x7ffe58e6cd08) at ../sysdeps/nptl/libc_start_call_main.h:58 #4 0x000074c19622a28b in __libc_start_main_impl (main=0x5a376b2f5880, argc=1, argv=0x7ffe58e6cd08, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffe58e6ccf8) at ../csu/libc-start.c:360 #5 0x00005a376b2f8485 in ?? () [Inferior 1 (process 42077) detached] PROCESS 42078 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND _apt 42078 0.0 0.0 25460 10964 ? S Jun02 0:00 /usr/lib/apt/methods/http [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x0000762446d26c3e in __GI___select (nfds=1, readfds=0x7ffcf2cd0750, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x7624465afa80 (LWP 42078) "http"): #0 0x0000762446d26c3e in __GI___select (nfds=1, readfds=0x7ffcf2cd0750, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x00007624476e938c in WaitFd(int, bool, unsigned long) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x000055a03c457c97 in ?? () #3 0x0000762446c2a1ca in __libc_start_call_main (main=main@entry=0x55a03c457880, argc=argc@entry=1, argv=argv@entry=0x7ffcf2cd0f18) at ../sysdeps/nptl/libc_start_call_main.h:58 #4 0x0000762446c2a28b in __libc_start_main_impl (main=0x55a03c457880, argc=1, argv=0x7ffcf2cd0f18, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffcf2cd0f08) at ../csu/libc-start.c:360 #5 0x000055a03c45a485 in ?? () [Inferior 1 (process 42078) detached] PROCESS 42079 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND _apt 42079 0.0 0.1 29496 16348 ? S Jun02 0:00 /usr/lib/apt/methods/https [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x0000706503d26c3e in __GI___select (nfds=1, readfds=0x7ffd2b268600, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x706503e19a80 (LWP 42079) "https"): #0 0x0000706503d26c3e in __GI___select (nfds=1, readfds=0x7ffd2b268600, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x000070650476138c in WaitFd(int, bool, unsigned long) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x000059cb8a464c97 in ?? () #3 0x0000706503c2a1ca in __libc_start_call_main (main=main@entry=0x59cb8a464880, argc=argc@entry=1, argv=argv@entry=0x7ffd2b268dc8) at ../sysdeps/nptl/libc_start_call_main.h:58 #4 0x0000706503c2a28b in __libc_start_main_impl (main=0x59cb8a464880, argc=1, argv=0x7ffd2b268dc8, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffd2b268db8) at ../csu/libc-start.c:360 #5 0x000059cb8a467485 in ?? () [Inferior 1 (process 42079) detached] PROCESS 42782 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND _apt 42782 0.0 0.0 26792 15120 ? S Jun02 0:00 /usr/lib/apt/methods/store [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Download failed: Invalid argument. Continuing without source file ./misc/../sysdeps/unix/sysv/linux/select.c. 0x00007cfffa926c3e in __GI___select (nfds=1, readfds=0x7ffdc639fa00, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 Thread 1 (Thread 0x7cfffaa32880 (LWP 42782) "store"): #0 0x00007cfffa926c3e in __GI___select (nfds=1, readfds=0x7ffdc639fa00, writefds=0x0, exceptfds=0x0, timeout=0x0) at ../sysdeps/unix/sysv/linux/select.c:69 #1 0x00007cfffb15d38c in WaitFd(int, bool, unsigned long) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #2 0x00007cfffb1120f3 in pkgAcqMethod::Run(bool) () from /lib/x86_64-linux-gnu/libapt-pkg.so.6.0 #3 0x000057952d30a296 in ?? () #4 0x00007cfffa82a1ca in __libc_start_call_main (main=main@entry=0x57952d30a010, argc=argc@entry=1, argv=argv@entry=0x7ffdc639ff58) at ../sysdeps/nptl/libc_start_call_main.h:58 #5 0x00007cfffa82a28b in __libc_start_main_impl (main=0x57952d30a010, argc=1, argv=0x7ffdc639ff58, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7ffdc639ff48) at ../csu/libc-start.c:360 #6 0x000057952d30a705 in ?? () [Inferior 1 (process 42782) detached] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2109495 Title: unattended-upgrades can (and regularly does) pause mid-update indefinitely with no error or feedback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/2109495/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
