Comment # 2 on bug 1210271 from Paul Dufresne

While watching this bug:
[   36.556325] Generic FE-GE Realtek PHY r8169-0-500:00: attached PHY driver
(mii_bus:phy_addr=r8169-0-500:00, irq=MAC)
[   36.645183] systemd-journald[507]: File
/var/log/journal/37ca514cd33c4bf4966d5b9221327843/user-1000.journal corrupted
or uncleanly shut down, renaming and replacing.
[   36.752695] r8169 0000:05:00.0 enp5s0: Link is Down
[   38.420255] r8169 0000:05:00.0 enp5s0: Link is Up - 100Mbps/Full - flow
control rx/tx
[   38.420280] IPv6: ADDRCONF(NETDEV_CHANGE): enp5s0: link becomes ready
[   39.662823] NET: Registered PF_PACKET protocol family
[   52.264842] nouveau 0000:01:00.0: Direct firmware load for
nouveau/nve6_fuc084 failed with error -2
[   52.264920] nouveau 0000:01:00.0: Direct firmware load for
nouveau/nve6_fuc084d failed with error -2
[   52.264927] nouveau 0000:01:00.0: msvld: unable to load firmware data
[   52.264939] nouveau 0000:01:00.0: msvld: init failed, -19
[   59.902866] rfkill: input handler disabled
[  640.809424] nouveau 0000:01:00.0: Direct firmware load for
nouveau/nve6_fuc084 failed with error -2
[  640.809452] nouveau 0000:01:00.0: Direct firmware load for
nouveau/nve6_fuc084d failed with error -2
[  640.809454] nouveau 0000:01:00.0: msvld: unable to load firmware data
[  640.809457] nouveau 0000:01:00.0: msvld: init failed, -19
[  687.979830] BTRFS info (device sda1): qgroup scan completed (inconsistency
flag cleared)
[ 1988.538761] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
[ 1988.538802] nouveau 0000:01:00.0: fifo:000000:0007:[Renderer[2144]] rc
scheduled
[ 1988.538804] nouveau 0000:01:00.0: fifo:000000: rc scheduled
[ 1988.538811] nouveau 0000:01:00.0: fifo:000000:0007:0007:[Renderer[2144]]
errored - disabling channel
[ 1988.538816] nouveau 0000:01:00.0: Renderer[2144]: channel 7 killed!
[ 2016.335847] rfkill: input handler enabled
[ 2091.913848] rfkill: input handler disabled
paul@localhost:~> 

After that Firefox stop responding... had to kill it.