| To: | Ralf Baechle <ralf@linux-mips.org> |
|---|---|
| Subject: | Re: [mips32r1 cpu] Advice needed: "Machine Check exception - caused by multiple matching entries in the TLB" |
| From: | kr kr <kr-jiffy@yandex.ru> |
| Date: | Mon, 23 Jul 2012 21:22:28 +0400 |
| Cc: | "linux-mips@linux-mips.org" <linux-mips@linux-mips.org> |
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20.07.2012, 13:16, "Ralf Baechle" <ralf@linux-mips.org>: > On Fri, Jul 13, 2012 at 12:03:25AM +0400, kr kr wrote: > >> [ 12.560000] Kernel panic - not syncing: Caught Machine Check exception - >> caused by multiple matching entries in the TLB. > > Running userland should never result in crashing the kernel except if > programs directly touch I/O hardware an do stupid things or abuse their > root priviledges.. > > This type of crash specifically has in the past been produced by incorrect > hazard barriers but also CPU hardware bugs so you may want to review the > kernel code against a CPU datasheet and errata documentation. As always > with hardware that is only supported out of tree we can't be too helpful ... > > Ralf Ok, thank you. But, in case of, say, Malta, we don't need to turn on (or turn off) some special CONFIG_* options in order to make it run MIPS-I binaries (which Debian provides), whereas MIPS32 binaries are native for the board? Yuri |
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