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Groups > linux.kernel > #1742634
| From | Brian Gerst <brgerst@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: random insta-reboots on AMD Phenom II |
| Date | 2017-09-30 16:30 +0200 |
| Message-ID | <uvqWd-5id-3@gated-at.bofh.it> (permalink) |
| References | <uvfo5-69K-3@gated-at.bofh.it> <uvnYl-3oZ-7@gated-at.bofh.it> <uvo81-3sE-9@gated-at.bofh.it> <uvoB5-3DX-7@gated-at.bofh.it> <uvpnr-4bL-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Sat, Sep 30, 2017 at 8:47 AM, Markus Trippelsdorf <markus@trippelsdorf.de> wrote: > On 2017.09.30 at 13:53 +0200, Borislav Petkov wrote: >> On Sat, Sep 30, 2017 at 01:29:03PM +0200, Adam Borowski wrote: >> > On Sat, Sep 30, 2017 at 01:11:37PM +0200, Borislav Petkov wrote: >> > > On Sat, Sep 30, 2017 at 04:05:16AM +0200, Adam Borowski wrote: >> > > > Any hints how to debug this? >> > > >> > > Do >> > > rdmsr -a 0xc0010015 >> > > as root and paste it here. >> > >> > 1000010 >> > 1000010 >> > 1000010 >> > 1000010 >> > 1000010 >> > 1000010 >> > >> > on both 4.13.4 and 4.14-rc2+. >> >> Boot into -rc2+ and do as root: >> >> # wrmsr -a 0xc0010015 0x1000018 >> >> If the issue gets fixed then Mr. Luto better revert the new lazy TLB >> flushing fun'n'games for 4.14 before it is too late and that kernel >> releases b0rked. > > The issue does get fixed by setting TlbCacheDis to 1. I have been > running it for the last few weeks without any problems. > Performance is not affected at all. So it might by easier to just set > the bit for older AMD processors as a boot quirk. > Changing the TLB code so late might not be a good idea... Looking at the AMD K10 revision guide (http://support.amd.com/TechDocs/41322_10h_Rev_Gd.pdf), errata #298 that this fixes should only apply to revisions DR-BA and DR-B2, which include the original Phenom, but not Phenom II. The Phenom II X6 is revision PH-E0, which does not have this errata. -- Brian Gerst
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random insta-reboots on AMD Phenom II Adam Borowski <kilobyte@angband.pl> - 2017-09-30 04:10 +0200
Re: random insta-reboots on AMD Phenom II Borislav Petkov <bp@alien8.de> - 2017-09-30 13:20 +0200
Re: random insta-reboots on AMD Phenom II Adam Borowski <kilobyte@angband.pl> - 2017-09-30 13:30 +0200
Re: random insta-reboots on AMD Phenom II Borislav Petkov <bp@alien8.de> - 2017-09-30 14:00 +0200
Re: random insta-reboots on AMD Phenom II Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-30 14:50 +0200
Re: random insta-reboots on AMD Phenom II Brian Gerst <brgerst@gmail.com> - 2017-09-30 16:30 +0200
Re: random insta-reboots on AMD Phenom II Markus Trippelsdorf <markus@trippelsdorf.de> - 2017-09-30 17:30 +0200
Re: random insta-reboots on AMD Phenom II Borislav Petkov <bp@alien8.de> - 2017-09-30 18:00 +0200
Re: random insta-reboots on AMD Phenom II Andy Lutomirski <luto@kernel.org> - 2017-09-30 18:10 +0200
Re: random insta-reboots on AMD Phenom II Andy Lutomirski <luto@amacapital.net> - 2017-09-30 17:20 +0200
Re: random insta-reboots on AMD Phenom II Borislav Petkov <bp@alien8.de> - 2017-09-30 17:50 +0200
Re: random insta-reboots on AMD Phenom II Adam Borowski <kilobyte@angband.pl> - 2017-10-01 15:10 +0200
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