<!-- Thank you for using postmarketOS! In order to speed up process of resolving your issue, we would like you to fill in the following form. *** NOTE FOR CONFIDENTIAL ISSUES: *** A lot of people can read confidential pmaports issues! If you want to submit something that only the postmarketOS Core Team can see, write to team@postmarketos.org instead of opening an issue here! --> ### Describe your issue #### What's the expected behaviour? The `syslogd -K` process from the initramfs does not get stuck in an infinite loop. Phone is cold when idle. #### What's the current behaviour? Phone is warm when idle, not on behalf of the user. One core is pegged at 100%, due to the `syslogd -K` process. #### How to reproduce your issue? Boot. Maybe keep the phone on for 2 hours to reproduce the heating. ### What device are you using? <!-- Leave name of your device in vendor-codename format. If unsure, check name in the device package or leave full name of device PinePhone: which revision exactly? See https://wiki.pine64.org/index.php/PinePhone#Hardware_revisions --> google-sargo ### On what postmarketOS version did you encounter the issue? <!-- Replace space inside `[ ]` with `x` to fill the checkbox --> * [x] edge (`master` branch) * [ ] `v24.06` * [x] I confirm that the issue still is present after running `sudo apk upgrade -a` ### On what environment did you encounter the issue? #### Environments * [ ] GNOME Shell on Mobile * [x] Phosh * [ ] Plasma Mobile * [ ] Sxmo (Wayland/Sway) **Please post the output of `sxmo_version.sh`** * [ ] Other: **Please fill out** ### How did you get postmarketOS image? * [ ] from https://images.postmarketos.org * [x] I built it using pmbootstrap * [ ] It was preinstalled on my device ### What's the build date of the image? (in yyyy-mm-dd format) <!-- Notes: can be left empty if unsure If you downloaded image from images.postmarketos.org, date will be in yyyymmdd format --> can be left empty if unsure ### Additional information <!-- logs, etc. -- make use <details> for long listings If your device displays an error message on boot or drops to the debug shell, attaching it to your PC with a USB cable may show a removable USB drive. You can drag and drop the .tar.gz file or otherwise upload it here. Refer to the README file on the device for more information. --> The `syslog` OpenRC service is stopped and disabled because a process persists beyond the initramfs. google-sargo:~$ rc-service syslog status * status: stopped The process can be found stuck on a `read` command most of the time: google-sargo:~$ doas gdb busybox 149 GNU gdb (GDB) 15.2 Copyright (C) 2024 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "aarch64-alpine-linux-musl". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from busybox... (No debugging symbols found in busybox) Attaching to program: /bin/busybox, process 149 Reading symbols from /lib/ld-musl-aarch64.so.1... Reading symbols from /usr/lib/debug//lib/ld-musl-aarch64.so.1.debug... __cp_end () at src/thread/aarch64/syscall_cp.s:30 warning: 30 src/thread/aarch64/syscall_cp.s: No such file or directory (gdb) bt #0 __cp_end () at src/thread/aarch64/syscall_cp.s:30 #1 0x0000ffffb7079494 in __syscall_cp_c (nr=63, u=<optimized out>, v=<optimized out>, w=<optimized out>, x=<optimized out>, y=<optimized out>, z=<optimized out>) at src/thread/pthread_cancel.c:33 #2 0x0000ffffb70810e8 in read (fd=<optimized out>, buf=<optimized out>, count=<optimized out>) at src/unistd/read.c:6 #3 0x0000aaaad96a72e4 in ?? () #4 0x0000ffffd974def0 in ?? () Backtrace stopped: previous frame inner to this frame (corrupt stack?) The program seems to read from stdin until there is data ([sysklog/syslogd.c:1117](https://git.busybox.net/busybox/tree/sysklogd/syslogd.c?h=1_37_0#n1117)), or if a read fails. stdin is /dev/null, meaning the `read` call immediately returns no bytes every time: google-sargo:~$ doas readlink /proc/149/fd/0 doas (user@google-sargo) password: /dev/null SIGTERM (the default signal emitted by killall) sets `bb_got_signal` ([sysklog/syslogd.c:1072](https://git.busybox.net/busybox/tree/sysklogd/syslogd.c?h=1_37_0#n1072); [libbb/signals.c:18](https://git.busybox.net/busybox/tree/libbb/signals.c?h=1_37_0#n18)), while only interrupting/failing `read()` if it is being called. This makes it unlikely that SIGTERM will terminate the program unless stdin reads are blocking.