I'm having a weird networking issue on 9front. Like the subject says, my Drawterm session will randomly freeze after some use, and after which the entire machine will lose network access - ip/ping will stop working, and hget will fail. Every time this happens I have to restart the machine. And here are things I've tried to try to find the cause:
First, I left the machine on for a whole day. Nothing happens, I can still connect to it. Next, I think this might happen if the CPU is under heavy load, so I ran Doom on both the Drawterm and the Plan 9 console. Still nothing happens. After several hours Doom's demo is still playing inside Drawterm. Then, I thought this might have to do with cwfs64x being unstable, so I tried to hammer the file server with this script on my Linux machine: #!/bin/bash tfile="$(mktemp -d /tmp/test.XXXXXXXXX)" || exit 1 # 9pfs from https://github.com/ftrvxmtrx/9pfs 9pfs -p "$2" -u "$3" "$1" "$tfile" if [ "$(stat -f -c %T $tfile)" != fuseblk ]; then rmdir "$tfile" exit 1 fi max=20 for ((i = 0 ; i < max ; i++ )); do echo "$i"/"$max"\: tar -c "$tfile" | dd status=progress of=/dev/null done umount -l "$tfile" rmdir "$tfile" And it cannot even finish one round without freezing. But when I tried to restart the machine and run the script again, out of 4 times, every single time tar freezes (and the network stops working) after reading exactly 97013760 bytes like this: 0/20: tar: Removing leading `/' from member names 2232832 bytes (2.2 MB, 2.1 MiB) copied, 2 s, 1.1 MB/star: /tmp/test.KhkGpOEiH/adm/keys: Cannot open: Permission denied tar: /tmp/test.KhkGpOEiH/adm/keys.who: Cannot open: Permission denied 95805952 bytes (96 MB, 91 MiB) copied, 65 s, 1.5 MB/s^C 189480+0 records in 189480+0 records out 97013760 bytes (97 MB, 93 MiB) copied, 80.3674 s, 1.2 MB/s However, just as me about to blame cwfs64x, I decided to try something else. I restarted the machine, and this time I run cat /dev/zero > /mnt/term/dev/null in Drawterm. Okay, nothing happens, the connection is still good after a few hours. But by chance I scrolled in a rio window and the whole thing immediately freezes. I also tried to replicate that, and yes, if I run cat /dev/random and rapidly scroll the window, it also triggers freezing. I have no idea, really. I cannot pin down this being caused by cwfs64x. I also don't understand if it's truly cwfs64x's problem, how can it affect networking at all - it doesn't crash after me losing the Drawterm session. I can still run commands inside the Plan 9 Console, and all files are intact. Can somebody suggest me what to look at next? ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T006c8f1c3d70cd80-M919f56fd3619c69204e05085 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
