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Updater hangs waiting for zombie process
Running `pkgupdate` interactively to upgrade from TOS 5.1.8 to TOS 5.2.1 and the updater hangs waiting for zombie process while running `mwan` postinstall script: ![Screenshot_from_2021-06-15_17-37-51](/uploads/c1bb5ff671ed4494a1933ae2e30b2763/Screenshot_from_2021-06-15_17-37-51.png) It recovers itself somehow after several minutes but it takes too long in interactive mode IMO. Also, this happened to me several times already. I guess it's `mwan` package every time... <details> <summary>pkgupdate console log</summary> ``` root@factory02: ~ # pkgupdate INFO:Target Turris OS: 5.2.1 INFO:Queue install of kernel/core/4.14.232-1-67f70e2f39f8e8859c56d42cced0b0b3 ... INFO:Queue install of luci-i18n-mwan3-en/luci/git-21.132.36199-d0cf6e4-1 ... INFO:Queue install of kmod-sit/core/4.14.232-1-67f70e2f39f8e8859c56d42cced0b0b3 INFO:Queue removal of dhparam ... INFO:Queue removal of luasec Press return to continue, CTRL+C to abort INFO:Downloading packages INFO:Executing preupdate hook: 05_schnapps.sh Snapshot number 55 created INFO:Unpacking download packages INFO:Checking for file collisions between packages INFO:Running pre-install and pre-rm scripts and merging packages to root file system WARN:Config file /etc/config/openvpn modified by the user. Backing up the new one into /etc/config/openvpn-opkg ... WARN:Config file /etc/mwan3.user modified by the user. Backing up the new one into /etc/mwan3.user-opkg ... WARN:Config file /etc/config/foris modified by the user. Backing up the new one into /etc/config/foris-opkg INFO:Running prerm of dhparam ... INFO:Running prerm of luasec INFO:Removing packages and leftover files INFO:Running post-install and post-rm scripts INFO:Running postinst of kernel ... INFO:Running postinst of kmod-ipt-ipset INFO:Running postinst of mwan3 ... <several minutes> ... ip: invalid argument '0x3d00/0x3F00' to 'fwmark' ip: invalid argument '0x3e00/0x3F00' to 'fwmark' ip: invalid argument '0x3d00/0x3F00' to 'fwmark' ip: invalid argument '0x3e00/0x3F00' to 'fwmark' ip: invalid argument '0x100/0x3F00' to 'fwmark' ip: invalid argument '0x3d00/0x3F00' to 'fwmark' ip: invalid argument '0x3e00/0x3F00' to 'fwmark' ip: invalid argument '0x3d00/0x3F00' to 'fwmark' ip: invalid argument '0x3e00/0x3F00' to 'fwmark' ip: invalid argument '0x200/0x3F00' to 'fwmark' INFO:Running postinst of luci-compat ... ``` </details>
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