Created attachment 283155 [details] testing configuration file I'm trying kernel-5.2-rc3 on some of my computers (fedora 30.) Wireless-ac 7260 on ivybridge notebook works fine for some minutes. But after some usage; ie browsing about 10-20 homepages, wifi stops working. But ifconfig shows that device (wlp2s0) has correct ipv4/ipv6 addresses. I'm using gnome, so once disabling wifi and enabling it again, it starts working again, but after some browsing, it stops. I tried the same .config file with kernel-5.1.7, it works fine. So it must be due to kernel driver. I attach the config file and dmesg logs of kernel-5.2-rc3 (fails and restarting) and of kernel-5.1.7 (normally working).
Created attachment 283157 [details] 7260 stopped, so disabled and enabled, and worked again.
Created attachment 283159 [details] 7260 working correctly with 5.1.7
nothing wrong in the logs. we just can see that you disable and re-enable WiFi. Can you try to bisect?
Sorry, what's "bisect"? I'll try "journalctl -b", but I don't know "bisect."
"bisect" is usually used in anatomy.. As rc4 was released yesterday, I'll try "journalctl -b" and other ways with it.
Created attachment 283167 [details] iwlwifi log file recorded by trace-cmd This is retrieved with "trace-cmd record" and decoded with "trace-cmd report". During this short time, 7260 was locked. During this period, I browsed google chrome and it was locked. However I cannot find any sign of lock in this log file! Anybody tell me how I can trace this phenomenon?
You have a viable kernel that can show your 7260 is working fine, you also have a defect kernel version that shows your 7260 is somehow failed. Bisect is your friend to search for what patch(es) that might cause this issue. Would be good for you to be a fiend of git. https://git-scm.com/docs/git-bisect
Thanks mattchen, It makes a sense. I'll try each patch. Actually now I'm on 5.1.8 and having no problem at all with 7260.
For a starter, I skipped all of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net and git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next since 5.1, but my 7260 still has problems. Now I found more possible tree, kernel/git/iwlwifi/ trees.....I try to skip these.
After disabling ipv6 ability with wifi, I found it worked perfectly. After some trials, I found proper settings enables ipv6 capability with 7260 wifi card. It's not due to kernel, but probably due to fedora or my isp equipments. Sorry for your inconvenience. I close this report as "Invalid." Sincerely,