This is on Fedora 30 with a Rawhide kernel. Changelog says Fri Jul 12 2019 5.3.0-0.rc0.git4.1 - Linux v5.2-7109-gd7d170a8e357 So that's probably linux-next git d7d170a8e357. Hardware 6c:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a) Product Name: HP Spectre Notebook SKU Number: W2K28UA#ABA This might be this bug: https://bugzilla.redhat.com/show_bug.cgi?id=1728319 which I opened and then closed when referred to https://bugzilla.kernel.org/show_bug.cgi?id=203315 as already being fixed. The thing is I never ran into this with kernel 5.1.0, it first started in 5.2.0rc's rarely and quite a lot with release. And now with this linux-next kernel I'm getting a bigger splat with a bunch more stuff in dmesg including this scan.c backtrace. Full dmesg attached.
Created attachment 283659 [details] dmesg
Created attachment 283661 [details] lspci -vvnn
Created attachment 284049 [details] dmesg Update dmesg attachment. Slightly different output. 5.3.0-0.rc2.git1.1.fc31.x86_64 corresponds to git 2a11c76e5301
The last dmesg shows that this is the same bug as 204151. Marking this as a duplicate. If the original bug in the previous dmesg comes back, please reopen. *** This bug has been marked as a duplicate of bug 204151 ***
The problem as originally reported never went away, it just so happens I also run into bug 204151.
Created attachment 284725 [details] dmesg2 Attaching latest dmesg using kernel 5.3.0-0.rc6.git1.1.fc32.x86_64, which is git 9e8312f5e160.
I get this first, which is reported in the other bug [ 16.291560] iwlwifi 0000:6c:00.0: FW error in SYNC CMD GEO_TX_POWER_LIMIT Then this happens, which is what I originally reported [ 16.292000] WARNING: CPU: 3 PID: 75 at drivers/net/wireless/intel/iwlwifi/mvm/scan.c:1874 iwl_mvm_rx_umac_scan_complete_notif.cold+0xc/0x13 [iwlmvm]
5.3.0-0.rc6.git1.1.fc32.x86_64 ~2MB/sec transfers 5.2.11-200.fc30.x86_64+debug ~16MB/sec transfers (same AP, same laptop physical location, back to back tests, merely rebooting different kernel versions)
Downstream bug. https://bugzilla.redhat.com/show_bug.cgi?id=1745766
Created attachment 285221 [details] dmesg3 I'm suffering from the same issue. I'm attaching my dmesg output as well, and also adding linuxwifi@intel.com to the bug, as pointed out in https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging.
(In reply to magiblot from comment #10) PS: My firmware version is 36.77d01142.0
All the logs show scan warning immediately following the GEO_TX_POWER_LIMIT FW error which was mentioned before (and resolved). Has anyone been able to reproduce this bug without the GEO error? if so please add the logs, otherwise this might a duplicate after all
Thanks, Gil. Setting to NEEDINFO.
I can't reproduce the issue anymore after a few updates. Currently using kernel 5.3.7-arch1-1-ARCH. Same firmware version as in comment #11. But I can't say the OP isn't suffering from a different issue. Thank you very much.
Marking this bug as duplicate again, since at least one of the reporters (thanks magiblot!) is not experiencing the bug anymore and the original reporter has not replied for a while. *** This bug has been marked as a duplicate of bug 204151 ***
The problem still occurs in kernel 5.4.10-200.fc31.x86_64: https://bugzilla.redhat.com/show_bug.cgi?id=1745766#c17