Comment # 2 on bug 900815 from Ludwig Nussel

Today it happened again on 13.2 final (3.16.4-9.g7a8842b-desktop):

[Do Nov 20 20:17:02 2014] wlp2s0: AP 9c:c7:a6:43:16:87 changed bandwidth, new
config is 2462 MHz, width 2 (2452/0 MHz)
[Do Nov 20 20:17:39 2014] iwlwifi 0000:02:00.0: fail to flush all tx fifo
queues Q 2
[Do Nov 20 20:17:39 2014] iwlwifi 0000:02:00.0: Current SW read_ptr 137
write_ptr 219
[Do Nov 20 20:17:39 2014] iwl data: 00000000: 00 fe ff 01 00 00 00 00 00 00 00
00 00 00 00 00  ................
[Do Nov 20 20:17:39 2014] iwlwifi 0000:02:00.0: FH TRBs(0) = 0x00000000
...
[Do Nov 20 20:18:27 2014] iwlwifi 0000:02:00.0: Q 18 is inactive and mapped to
fifo 0 ra_tid 0x0000 [0,0]
[Do Nov 20 20:18:27 2014] iwlwifi 0000:02:00.0: Q 19 is inactive and mapped to
fifo 0 ra_tid 0x0000 [0,0]
[Do Nov 20 20:20:31 2014] cfg80211: Calling CRDA to update world regulatory
domain

Wifi was dead a few minutes, then it apparently reconnected and worked again.
Which kernel package should I try exactly?