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[ 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
...
@Germwalker
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same problem here ... any advice ?

@satoru-takeuchi
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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.

@satoru-takeuchi
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@Germwalker
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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.

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

@satoru-takeuchi
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This problem doesn't happen in Ryzen 500p series.

@cyberrobots
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cyberrobots commented Jan 28, 2021

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)

@satoru-takeuchi
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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.

@cyberrobots
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I see, thanks for the heads up.

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