Intermittent system freezes with kernel 5.8.5
I was running 5.4.8 before and had regular issues like:
i915 0000:00:02.0: Resetting rcs0 for stuck wait on rcs0
until finally, either I had to reboot or the machine was rebooted by watchdog. Now, with 5.8.5, I encountered a full system hang (kernel unresponsive) and after reboot found this in BERT:
[ 1.255970] BERT: Error records from previous boot:
[ 1.255972] [Hardware Error]: event severity: fatal
[ 1.255974] [Hardware Error]: Error 0, type: fatal
[ 1.255975] [Hardware Error]: section_type: Firmware Error Record Reference
[ 1.255977] [Hardware Error]: Firmware Error Record Type: SOC Firmware Error Record Type1 (Legacy CrashLog Support)
[ 1.255979] [Hardware Error]: Revision: 0
[ 1.255980] [Hardware Error]: Record Identifier: 100300100000000
[ 1.255982] [Hardware Error]: 00000000: 00000000 00000000 00000000 00000000 ................
[ 1.255985] [Hardware Error]: 00000010: 01003001 00000006 3d9282cd 00000f64 .0.........=d...
[ 1.255987] [Hardware Error]: 00000020: 00000002 00000032 09190029 800007ff ....2...).......
[ 1.255990] [Hardware Error]: 00000030: 02002490 7f05fe03 00000001 00000000 .$..............
[ 1.255992] [Hardware Error]: 00000040: 22000000 01200501 80002031 00006100 ...".. .1 ...a..
[ 1.255994] [Hardware Error]: 00000050: 05000400 c7004000 ff2f7f04 cf01f08b .....@..../.....
[ 1.255996] [Hardware Error]: 00000060: 750e687b 9a022000 00110000 00002000 {h.u. ....... ..
[ 1.255998] [Hardware Error]: 00000070: 04000000 00000000 00500881 000ecf1a ..........P.....
[ 1.256000] [Hardware Error]: 00000080: 04035d00 00000007 5bf3f170 1020003c .]......p..[<. .
[ 1.256003] [Hardware Error]: 00000090: 00000086 fff3f900 de3717bc ff477e87 ..........7..~G.
[ 1.256005] [Hardware Error]: 000000a0: 7df3f9ff 18321000 03417887 5bf3f11e ...}..2..xA....[
[ 1.256007] [Hardware Error]: 000000b0: 1000003c 00000086 00000000 00000000 <...............
[ 1.256009] [Hardware Error]: 000000c0: 00000000 d9602100 08241cbc 00000004 .....!`...$.....
[ 1.256011] [Hardware Error]: 000000d0: 000c0600 21c80043 00b88078 00001800 ....C..!x.......
[ 1.256013] [Hardware Error]: 000000e0: 00000000 03416680 00000000 00000000 .....fA.........
[ 1.256015] [Hardware Error]: 000000f0: 00001080 00004200 00000000 0114b800 .....B..........
[ 1.256018] [Hardware Error]: 00000100: 00000002 00000009 00000080 6893eb00 ...............h
[ 1.256020] [Hardware Error]: 00000110: c0370000 926c1403 3fc8ffff 6893ebfc ..7...l....?...h
[ 1.256022] [Hardware Error]: 00000120: c0370000 00029003 00010000 00010000 ..7.............
[ 1.256024] [Hardware Error]: 00000130: 00010000 80010000 0036401e 00010000 .........@6.....
[ 1.256026] [Hardware Error]: 00000140: 00010000 ff010000 ff00000f ff00000f ................
[ 1.256028] [Hardware Error]: 00000150: ff00000f 7f00000f ff09250e ff00000f .........%......
[ 1.256030] [Hardware Error]: 00000160: ff00000f 0000000f 00000000 00000000 ................
[ 1.256033] [Hardware Error]: 00000170: 00000000 00000000 00000000 00000000 ................
[ 1.256035] [Hardware Error]: 00000180: 00000000 00000000 00000000 00000000 ................
[ 1.256037] [Hardware Error]: 00000190: 00000000 00000000 00000000 00000000 ................
[ 1.256039] [Hardware Error]: 000001a0: 00000000 00000000 00000000 e4000000 ................
[ 1.256041] [Hardware Error]: 000001b0: 00000000 00000000 00000000 72000000 ...............r
[ 1.256043] [Hardware Error]: 000001c0: 72340001 72040001 72040001 72040001 ..4r...r...r...r
[ 1.256045] [Hardware Error]: 000001d0: 72300001 72040001 72040001 00040001 ..0r...r...r....
[ 1.256047] [Hardware Error]: 000001e0: 00000000 00000000 00000000 00000000 ................
[ 1.256049] [Hardware Error]: 000001f0: 00000000 00000000 00000000 00000000 ................
[ 1.256051] [Hardware Error]: 00000200: 00000000 00000000 00000000 00000000 ................
[ 1.256053] [Hardware Error]: 00000210: 00000000 00000000 00000000 00000000 ................
[ 1.256055] [Hardware Error]: 00000220: 00000000 41000000 00000044 00000000 .......AD.......
[ 1.256057] [Hardware Error]: 00000230: 00000000 00000000 0000001f 0000001f ................
[ 1.256060] [Hardware Error]: 00000240: 0000001f 0000001f 0000001f 0000001f ................
[ 1.256062] [Hardware Error]: 00000250: 0000001f 0000001f 00000000 00000000 ................
[ 1.256064] [Hardware Error]: 00000260: 01000000 00000000 00000000 00000000 ................
[ 1.256066] [Hardware Error]: 00000270: 00010000 71010000 00333816 00010000 .......q.83.....
[ 1.256068] [Hardware Error]: 00000280: 00010000 00010000 00010000 ff010000 ................
[ 1.256070] [Hardware Error]: 00000290: ff00000f 7000000f ff066f06 ff00000f .......p.o......
[ 1.256072] [Hardware Error]: 000002a0: ff00000f ff00000f ff00000f 0000000f ................
[ 1.256074] [Hardware Error]: 000002b0: 00000000 00000000 00000000 00000000 ................
[ 1.256076] [Hardware Error]: 000002c0: 00000000 00000000 00000000 00000000 ................
[ 1.256078] [Hardware Error]: 000002d0: 00000000 00000000 00000000 00000000 ................
[ 1.256080] [Hardware Error]: 000002e0: 00000000 00000000 00000000 00000000 ................
[ 1.256082] [Hardware Error]: 000002f0: 00000000 00000000 00000000 00000000 ................
[ 1.256084] [Hardware Error]: 00000300: 00000000 72000000 72340001 72040001 .......r..4r...r
[ 1.256087] [Hardware Error]: 00000310: 72000001 72040001 72340001 72040001 ...r...r..4r...r
[ 1.256089] [Hardware Error]: 00000320: 72040001 00040001 00000000 00000000 ...r............
[ 1.256091] [Hardware Error]: 00000330: 00000000 00000000 00000000 00000000 ................
[ 1.256093] [Hardware Error]: 00000340: 00000000 00000000 00000000 00000000 ................
[ 1.256095] [Hardware Error]: 00000350: 00000000 00000000 00000000 00000000 ................
[ 1.256097] [Hardware Error]: 00000360: 00000000 00000000 00000000 00000000 ................
[ 1.256099] [Hardware Error]: 00000370: 00000000 00000000 00000000 00000000 ................
[ 1.256101] [Hardware Error]: 00000380: 0000001f 0000001f 0000001f 0000001f ................
[ 1.256103] [Hardware Error]: 00000390: 0000001f 0000001f 0000001f 0000001f ................
[ 1.256105] [Hardware Error]: 000003a0: 00000000 00000100 00000000 00000000 ................
[ 1.256107] [Hardware Error]: 000003b0: 00000000 ba000000 003c18fe 00010000 ..........<.....
[ 1.256109] [Hardware Error]: 000003c0: 00010000 ee010000 00333810 00010000 .........83.....
[ 1.256111] [Hardware Error]: 000003d0: 00010000 b9010000 ff03440e ff00000f .........D......
[ 1.256113] [Hardware Error]: 000003e0: ff00000f ed00000f ff00ec00 ff00000f ................
[ 1.256115] [Hardware Error]: 000003f0: ff00000f 0000000f 00000000 00000000 ................
[ 1.256117] [Hardware Error]: 00000400: 00000000 00000000 00000000 00000000 ................
[ 1.256119] [Hardware Error]: 00000410: 00000000 00000000 00000000 00000000 ................
[ 1.256121] [Hardware Error]: 00000420: 00000000 00000000 00000000 00000000 ................
[ 1.256123] [Hardware Error]: 00000430: 00000000 00000000 00000000 00000000 ................
[ 1.256126] [Hardware Error]: 00000440: 00000000 00000000 00000000 72000000 ...............r
[ 1.256128] [Hardware Error]: 00000450: 72300001 72040001 72040001 72040001 ..0r...r...r...r
[ 1.256130] [Hardware Error]: 00000460: 72300001 72040001 72040001 00040001 ..0r...r...r....
[ 1.256132] [Hardware Error]: 00000470: 00000001 00000000 00000000 00000000 ................
[ 1.256134] [Hardware Error]: 00000480: 00000000 00000000 00000000 00000000 ................
[ 1.256136] [Hardware Error]: 00000490: 00000000 00000000 00000000 00000000 ................
[ 1.256138] [Hardware Error]: 000004a0: 00000000 00000000 00000000 00000000 ................
[ 1.256140] [Hardware Error]: 000004b0: 00000000 00000000 00000000 00000000 ................
[ 1.256142] [Hardware Error]: 000004c0: 00000000 00000000 0000001f 0000001f ................
[ 1.256144] [Hardware Error]: 000004d0: 0000001f 0000001f 0000001f 0000001f ................
[ 1.256146] [Hardware Error]: 000004e0: 0000001f 0100001f 00000000 00000000 ................
[ 1.256148] [Hardware Error]: 000004f0: 01000000 00000000 00000000 00000000 ................
[ 1.256150] [Hardware Error]: 00000500: 00000000 00000000 0f420000 00433640 ..........B.@6C.
[ 1.256152] [Hardware Error]: 00000510: dec90103 ff000a0e 455f001f 39003000 .........._E.0.9
[ 1.256154] [Hardware Error]: 00000520: 00000000 00000000 00000000 00000000 ................
[ 1.256156] [Hardware Error]: 00000530: 00000000 00000000 00000000 00000000 ................
[ 1.256158] [Hardware Error]: 00000540: 00000000 00000000 00000000 00000000 ................
...
[ 1.256247] [Hardware Error]: 00000800: 00000000 00000000 00000000 00000000 ................
[ 1.256249] [Hardware Error]: 00000810: ffffffff ffffffff ffffffff ffffffff ................
[ 1.256251] [Hardware Error]: 00000820: ffffffff ffffffff ffffffff ffffffff ................
[ 1.256254] [Hardware Error]: 00000830: ffffffff ffffffff ffffffff ffffffff ................
[ 1.256256] [Hardware Error]: 00000840: ffffffff ffffffff ffffffff ffffffff ................
...
[ 1.256380] [Hardware Error]: 00000c00: ffffffff ffffffff ffffffff ffffffff ................
While there is no crystal-clear correlation to Intel DRM, it happened during heavy webbrowser activity and it is the only hardware component I experienced issues with on this machine (untainted kernel).
Some more details:
5.8.5-gentoo #1 SMP Sat Aug 29 17:49:33 CEST 2020 x86_64 Intel(R) Xeon(R) E-2146G CPU @ 3.50GHz GenuineIntel GNU/Linux
- This happened after ~8 days of operation, similar to the frequency at which I encountered rcs0 hangs before.
I can provide more details as requested. Any help to pin this down is highly appreciated, since I would love to be have this Intel machine run more stable.