nouveau going off the deep end...

Sun Jun 19 20:31:01 UTC 2022

I am running Ubuntu 18.04 on an AMD Phenom(tm) II X4 945 Processor, 8Gig of 
RAM, with a NVIDIA Corporation C77 [GeForce 8200] (rev a2) video chipset.  
There is some sort of bug in the version of KiCaD I have 
(4.0.7+dfsg1-1ubuntu2) with its pcbnew program that puts my machine in a state 
where I have to use the "magic" SysRq key to forceably reboot it (I can ssh in 
from another computer, but /sbin/reboot does not work).

I've included the last of the kernel log.  It looks like something is broken 
in nouveau, which I am guessing has something to do with the video somehow.  
(And no, I am not going to download and install NVIDIA's video driver.)

I don't know if this is a kernel problem (I current have kernel 
4.15.0-187-generic), or something in X Server.

Jun 19 16:08:38 sauron kernel: [860959.174609] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:38 sauron kernel: [860959.175311] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:38 sauron kernel: [860959.175982] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:38 sauron kernel: [860959.176651] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:38 sauron kernel: [860959.177303] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:40 sauron kernel: [860961.177974] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:40 sauron kernel: [860961.178678] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:40 sauron kernel: [860961.179406] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:40 sauron kernel: [860961.180074] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:40 sauron kernel: [860961.180727] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:42 sauron kernel: [860963.181410] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:42 sauron kernel: [860963.182059] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:42 sauron kernel: [860963.182730] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:42 sauron kernel: [860963.183398] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:42 sauron kernel: [860963.184051] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:44 sauron kernel: [860965.184723] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:44 sauron kernel: [860965.185425] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:44 sauron kernel: [860965.186153] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:44 sauron kernel: [860965.186879] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:44 sauron kernel: [860965.187587] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:46 sauron kernel: [860967.188320] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:46 sauron kernel: [860967.189022] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:46 sauron kernel: [860967.189760] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:46 sauron kernel: [860967.190429] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:46 sauron kernel: [860967.191082] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:48 sauron kernel: [860969.191762] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:48 sauron kernel: [860969.192465] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:48 sauron kernel: [860969.193136] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:48 sauron kernel: [860969.193804] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:48 sauron kernel: [860969.194455] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:50 sauron kernel: [860971.195124] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:50 sauron kernel: [860971.195771] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:50 sauron kernel: [860971.196441] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:50 sauron kernel: [860971.197108] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:50 sauron kernel: [860971.197760] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:52 sauron kernel: [860973.198438] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:52 sauron kernel: [860973.199084] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:52 sauron kernel: [860973.199754] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:52 sauron kernel: [860973.200421] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:52 sauron kernel: [860973.201073] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:54 sauron kernel: [860975.201756] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:54 sauron kernel: [860975.202460] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:54 sauron kernel: [860975.203130] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:54 sauron kernel: [860975.203797] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:54 sauron kernel: [860975.204449] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:56 sauron kernel: [860977.205163] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:56 sauron kernel: [860977.205866] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:56 sauron kernel: [860977.206537] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:56 sauron kernel: [860977.207204] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:56 sauron kernel: [860977.207857] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:08:58 sauron kernel: [860979.208548] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:08:58 sauron kernel: [860979.209250] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:08:58 sauron kernel: [860979.209920] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:08:58 sauron kernel: [860979.210587] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:08:58 sauron kernel: [860979.211240] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:00 sauron kernel: [860981.211924] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:00 sauron kernel: [860981.212625] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:00 sauron kernel: [860981.213295] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:00 sauron kernel: [860981.213962] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:00 sauron kernel: [860981.214613] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:02 sauron kernel: [860983.215285] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:02 sauron kernel: [860983.215985] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:02 sauron kernel: [860983.216654] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:02 sauron kernel: [860983.217320] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:02 sauron kernel: [860983.217971] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:04 sauron kernel: [860985.218648] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:04 sauron kernel: [860985.219348] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:04 sauron kernel: [860985.220021] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:04 sauron kernel: [860985.220687] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:04 sauron kernel: [860985.221337] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:06 sauron kernel: [860987.222017] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:06 sauron kernel: [860987.222663] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:06 sauron kernel: [860987.223330] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:06 sauron kernel: [860987.223996] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:06 sauron kernel: [860987.224646] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:08 sauron kernel: [860989.225331] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:08 sauron kernel: [860989.226030] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:08 sauron kernel: [860989.226697] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:08 sauron kernel: [860989.227361] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:08 sauron kernel: [860989.228010] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:10 sauron kernel: [860991.228687] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:10 sauron kernel: [860991.229386] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:10 sauron kernel: [860991.230054] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:10 sauron kernel: [860991.230719] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:10 sauron kernel: [860991.231369] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:12 sauron kernel: [860993.232048] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:12 sauron kernel: [860993.232748] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:12 sauron kernel: [860993.233414] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:12 sauron kernel: [860993.234078] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:12 sauron kernel: [860993.234726] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:14 sauron kernel: [860995.235397] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:14 sauron kernel: [860995.236095] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:14 sauron kernel: [860995.236820] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:14 sauron kernel: [860995.237541] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:14 sauron kernel: [860995.238253] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:16 sauron kernel: [860997.238929] nouveau 0000:02:00.0: gr: PGRAPH TLB flush idle timeout fail
Jun 19 16:09:16 sauron kernel: [860997.239628] nouveau 0000:02:00.0: gr: PGRAPH_STATUS 00000501 [BUSY CTXPROG CCACHE_PREGEOM]
Jun 19 16:09:16 sauron kernel: [860997.240352] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS0: 00000008 [CCACHE]
Jun 19 16:09:16 sauron kernel: [860997.241075] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS1: 00000000 []
Jun 19 16:09:16 sauron kernel: [860997.241780] nouveau 0000:02:00.0: gr: PGRAPH_VSTATUS2: 00000000 []
Jun 19 16:09:27 sauron kernel: [861008.278250] sysrq: Keyboard mode set to system default
Jun 19 16:09:31 sauron kernel: [861012.243328] nouveau 0000:02:00.0: systemd-logind[2692]: failed to idle channel 3 [systemd-logind[2692]]

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