ryzen-random-corrected-mce-about-uop-cache

...
[  627.958024] mce: [Hardware Error]: Machine check events logged
[  627.958027] [Hardware Error]: Corrected error, no action required.
[  627.958034] [Hardware Error]: CPU:13 (17:1:1) MC3_STATUS[-|CE|MiscV|-|-|-|-|SyndV|-]: 0x9820000000000150
[  627.958037] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[  627.958040] [Hardware Error]: Decode Unit Extended Error Code: 0
[  627.958041] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[  627.958044] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 1250.624254] mce: [Hardware Error]: Machine check events logged
[ 1250.624258] [Hardware Error]: Corrected error, no action required.
[ 1250.624264] [Hardware Error]: CPU:9 (17:1:1) MC3_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd820000000000150
[ 1250.624268] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 1250.624271] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 1250.624272] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 1250.624274] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 1561.949481] mce: [Hardware Error]: Machine check events logged
[ 1561.949484] [Hardware Error]: Corrected error, no action required.
[ 1561.949490] [Hardware Error]: CPU:15 (17:1:1) MC3_STATUS[-|CE|MiscV|-|-|-|-|SyndV|-]: 0x9820000000000150
[ 1561.949494] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 1561.949497] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 1561.949498] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 1561.949500] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 1873.272876] mce: [Hardware Error]: Machine check events logged
[ 1873.272879] [Hardware Error]: Corrected error, no action required.
[ 1873.272884] [Hardware Error]: CPU:9 (17:1:1) MC3_STATUS[-|CE|MiscV|-|-|-|-|SyndV|-]: 0x9820000000000150
[ 1873.272888] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 1873.272891] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 1873.272892] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 1873.272894] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 2184.592085] mce: [Hardware Error]: Machine check events logged
[ 2184.592088] [Hardware Error]: Corrected error, no action required.
[ 2184.592094] [Hardware Error]: CPU:9 (17:1:1) MC3_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd820000000000150
[ 2184.592098] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 2184.592101] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 2184.592103] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 2184.592104] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 2495.910045] mce: [Hardware Error]: Machine check events logged
[ 2495.910048] [Hardware Error]: Corrected error, no action required.
[ 2495.910053] [Hardware Error]: CPU:9 (17:1:1) MC3_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd820000000000150
[ 2495.910057] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 2495.910060] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 2495.910061] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 2495.910063] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 2495.910065] mce: [Hardware Error]: Machine check events logged
[ 2495.910066] [Hardware Error]: Corrected error, no action required.
[ 2495.910068] [Hardware Error]: CPU:11 (17:1:1) MC3_STATUS[-|CE|MiscV|-|-|-|-|SyndV|-]: 0x9820000000000150
[ 2495.910070] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 2495.910072] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 2495.910073] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 2495.910074] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 2807.228798] mce: [Hardware Error]: Machine check events logged
[ 2807.228801] [Hardware Error]: Corrected error, no action required.
[ 2807.228808] [Hardware Error]: CPU:9 (17:1:1) MC3_STATUS[-|CE|MiscV|-|-|-|-|SyndV|-]: 0x9820000000000150
[ 2807.228812] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000503
[ 2807.228816] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 2807.228817] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 2807.228819] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
[ 2807.228821] mce: [Hardware Error]: Machine check events logged
[ 2807.228821] [Hardware Error]: Corrected error, no action required.
[ 2807.228823] [Hardware Error]: CPU:13 (17:1:1) MC3_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd820000000000150
[ 2807.228825] [Hardware Error]: IPID: 0x000300b000000000, Syndrome: 0x000000002a000207
[ 2807.228827] [Hardware Error]: Decode Unit Extended Error Code: 0
[ 2807.228828] [Hardware Error]: Decode Unit Error: uop cache tag parity error.
[ 2807.228829] [Hardware Error]: cache level: RESV, tx: INSN, mem-tx: IRD
...

same problem here ... any advice ?

AMD admitted that the first gen Ryzen have a troublem causing this problem. Probably you can RMA your CPU with fine one. Please ask AMD support.

Here is the detailed information.
https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Segv-Response

Thx i just leaved a message to AMD support.
I just saw that a bad VRM could also explain that kind of hardware parity failure.

Hi, Just installed Ryzen 5800x and spotted this error did you had any response from AMD?

This problem doesn't happen in Ryzen 500p series.

Just got this on 5.4.0-65-generic kernel... It happened only a few times though..

[Wed Jan 27 01:39:20 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 01:39:20 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 01:39:20 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 01:39:20 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 01:39:20 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 01:39:20 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 01:42:35 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 01:42:35 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 01:42:35 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[Over|CE|MiscV|-|-|-|SyndV|-|-|-]: 0xd82000000002080b [Wed Jan 27 01:42:35 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 01:42:35 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 01:42:35 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 01:47:46 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 01:47:46 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 01:47:46 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 01:47:46 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 01:47:46 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 01:47:46 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 01:52:57 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 01:52:57 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 01:52:57 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 01:52:57 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 01:52:57 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 01:52:57 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 03:26:21 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 03:26:21 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 03:26:21 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[Over|CE|MiscV|-|-|-|SyndV|-|-|-]: 0xd82000000002080b [Wed Jan 27 03:26:21 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 03:26:21 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 03:26:21 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 03:31:32 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 03:31:32 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 03:31:32 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[Over|CE|MiscV|-|-|-|SyndV|-|-|-]: 0xd82000000002080b [Wed Jan 27 03:31:32 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 03:31:32 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 03:31:32 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 03:41:54 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 03:41:54 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 03:41:54 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 03:41:54 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 03:41:54 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 03:41:54 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 12:05:10 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 12:05:10 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 12:05:10 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 12:05:10 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 12:05:10 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 12:05:10 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 12:46:41 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 12:46:41 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 12:46:41 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[-|CE|MiscV|-|-|-|SyndV|-|-|-]: 0x982000000002080b [Wed Jan 27 12:46:41 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 12:46:41 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 12:46:41 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) [Wed Jan 27 16:34:58 2021] mce: [Hardware Error]: Machine check events logged [Wed Jan 27 16:34:58 2021] [Hardware Error]: Corrected error, no action required. [Wed Jan 27 16:34:58 2021] [Hardware Error]: CPU:0 (19:21:0) MC27_STATUS[Over|CE|MiscV|-|-|-|SyndV|-|-|-]: 0xd82000000002080b [Wed Jan 27 16:34:58 2021] [Hardware Error]: IPID: 0x0001002e00000500, Syndrome: 0x000000005a020001 [Wed Jan 27 16:34:58 2021] [Hardware Error]: Power, Interrupts, etc. Ext. Error Code: 2, Link Error. [Wed Jan 27 16:34:58 2021] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout)

This error itself is harmless since the cpu fixed this issue. However, if this problem happens contiuously, I suggest you to ask AMD with this log.

This log can be shown even if the root cause is not from the problem which I found. I'm not sure your problem is same as mine.

I see, thanks for the heads up.