Today I started an update of many packages and muon hung on 71%. This is
not related to etckeeper, but looks related to the pseudoterminal
output, similarly to comment #10. The actually hung process is /bin/sh
(dash), trying to write to stdout.
$ ps -e f #only a relevant part
20736 ? Sl 1:04 /usr/bin/muon-updater
20794 ? Sl 0:16 /usr/bin/qaptworker
20902 pts/22 Ss+ 0:00 \_ /usr/bin/qaptworker
26578 pts/23 Ss+ 0:00 \_ /usr/bin/dpkg --status-fd 47 --configure
libudev0 libcurl3 libcurl4-openssl-dev libcurl3:i386 libcurl3-gnutls
libgudev-1.0-0 li
4575 pts/23 S+ 0:00 \_ /bin/sh
/var/lib/dpkg/info/initramfs-tools.postinst triggered update-initramfs
4576 pts/23 S+ 0:00 \_ /bin/sh /usr/sbin/update-initramfs -u
4589 pts/23 S+ 0:00 \_ /bin/sh /usr/sbin/mkinitramfs -o
/boot/initrd.img-3.0.0-15-generic.new 3.0.0-15-generic
10174 pts/23 S+ 0:00 \_ /bin/sh
/usr/share/initramfs-tools/hooks/framebuffer
$ sudo strace -p 10174
Process 10174 attached - interrupt to quit
write(1, "\n", 1
^C <unfinished ...>
Process 10174 detached
$ sudo lsof -p 10174
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
framebuff 10174 root cwd DIR 253,1 4096 2 /
framebuff 10174 root rtd DIR 253,1 4096 2 /
framebuff 10174 root txt REG 253,1 109768 524297 /bin/dash
framebuff 10174 root mem REG 253,1 1677624 1061598
/lib/x86_64-linux-gnu/libc-2.13.so
framebuff 10174 root mem REG 253,1 141088 1061605
/lib/x86_64-linux-gnu/ld-2.13.so
framebuff 10174 root 0u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 1u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 2u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 10r REG 253,1 492 395156
/usr/share/initramfs-tools/hooks/framebuffer
framebuff 10174 root 11u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 45w REG 253,2 39619 57
/var/log/apt/history.log
$ sudo lsof /dev/pts/23
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
initramfs 4575 root 0u CHR 136,23 0t0 26 /dev/pts/23
initramfs 4575 root 1u CHR 136,23 0t0 26 /dev/pts/23
initramfs 4575 root 2u CHR 136,23 0t0 26 /dev/pts/23
update-in 4576 root 0u CHR 136,23 0t0 26 /dev/pts/23
update-in 4576 root 1u CHR 136,23 0t0 26 /dev/pts/23
update-in 4576 root 2u CHR 136,23 0t0 26 /dev/pts/23
mkinitram 4589 root 0u CHR 136,23 0t0 26 /dev/pts/23
mkinitram 4589 root 1u CHR 136,23 0t0 26 /dev/pts/23
mkinitram 4589 root 2u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 0u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 1u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 2u CHR 136,23 0t0 26 /dev/pts/23
framebuff 10174 root 11u CHR 136,23 0t0 26 /dev/pts/23
dpkg 26578 root 0u CHR 136,23 0t0 26 /dev/pts/23
dpkg 26578 root 1u CHR 136,23 0t0 26 /dev/pts/23
dpkg 26578 root 2u CHR 136,23 0t0 26 /dev/pts/23
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https://bugs.launchpad.net/bugs/840306
Title:
Muon hangs when using etckeeper
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