Other useful info: I've run udevadm test --action=remove /devices/platform/soc/1c14000.usb/usb1/1-1/1-1.2/1-1.2:1.2/ttyUSB2/tty/ttyUSB2 Several times, but everytime I got
ACTION=remove DEVNAME=/dev/ttyUSB2 DEVPATH=/devices/platform/soc/1c14000.usb/usb1/1-1/1-1.2/1-1.2:1.2/ttyUSB2/tty/ttyUSB2 MAJOR=188 MINOR=2 SUBSYSTEM=tty run: '/opt/trx/gprs-modem-symlink-handler.bash remove /devices/platform/soc/1c14000.usb/usb1/1-1/1-1.2/1-1.2:1.2/ttyUSB2/tty/ttyUSB2 ttyUSB2' Unload module index Unloaded link configuration context. Which is the correct behaviour. But, again, when in unplugged the modem it doesn't run RUNscript for ttyUSB2. I'm sure it doesn't raises error because in /var/log/syslog the log line starting '/bin/bash /opt/trx/gprs-modem-symlink-handler.bash remove /devices/platform/soc/1c14000.usb/usb1/1-1/1-1.2/1-1.2:1.2/ttyUSB2/tty/ttyUSB2 ttyUSB2' Is missing (only when I have this bad behaviour, so not every disconnection, but randomly). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1906263 Title: Udev Randomly Doesn't Run Run Script on Remove Status in systemd package in Ubuntu: New Bug description: Hello, I'm running ubuntu (Description: Ubuntu 18.04.4 LTS, Release: 18.04) with 5.0.21-sunxi kernel. I've updated udev to latest version (237-3ubuntu10.43 500). I've written the following rule to create (and removing) symlink to modem ports: https://pastebin.com/cUwHrf1f Since many usb modems hase more than one serial i enumerate them with their port number (as just some specific serial can be used to connect) Here link to mu RUN script /opt/trx/gprs-modem-symlink-handler.bash https://pastebin.com/2XTCiV27 What I expect to happen is having many /dev/ttyTRXGPRSMODEM* (enumerated) when I plug-in a modem in the list, and having symlink cleared on removing. every modem listed in rule is using "option" usb serial driver. When i plug in a device I have no issues, everything works fine. But sometimes, on removing, I found that some links are still there (it's not happening everytime). I've enabled debug log with udev and found that sometimes is not calling RUN script: Here the working situation (3 tty remove events and 3 RUN events): https://pastebin.com/EKX5zMh7 And here is the buggy situation (3 tty remove events, but only 2 RUN events) with the same device as the example above: https://pastebin.com/dB7ujQ79 Since it's happening randomly I can't figure out whats causing the problem. I guess it's not the rule because on an old debian 7 release it's working fine, and on the release described above I get others symlinks removed even in the buggy situation (as in the example: two are removed, one not). It seems like sometimes udev ignores totally the run event. Last thing to report: I'm not opening these links! So are not locked or protected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1906263/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
