i had this too with my R5 3600, solved by RMA.
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https://bugs.launchpad.net/bugs/1870538
Title:
ryzen 5 3600x hard lockup
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** Attachment added: "journal_log_28042020_5.7.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870538/+attachment/5362190/+files/journal_log_28042020_5.7.txt
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Spoke too soon. Here are 2 crashes
** Attachment added: "journal_log_27042020_5.7.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870538/+attachment/5362189/+files/journal_log_27042020_5.7.txt
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Tested it with the latest 5.7-rc1, it looks more stable. It froze only
once so far.
** Attachment added: "journal_log_26042020_5.7.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870538/+attachment/5360853/+files/journal_log_26042020_5.7.txt
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I upgraded to ubuntu 20.04 since the bug report, but still the same issues.
Will try the mainline kernel, but nvidia-driver is complaining about not
supporting 5.7 yet.
This is a crash log from 20.04's default kernel for now.
** Attachment added: "journal_log_25042929.txt"
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7-rc1/
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https://bugs.launchpad.net/bugs/1870538
Title:
ryzen 5 3600x hard lockup
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