CVS commit: syssrc/sys/arch/mips/mips

[Rafal Boni <rafal%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   rafal
Date:           Tue Jul 24 23:13:33 UTC 2001

Modified Files:
        syssrc/sys/arch/mips/mips: locore_mips3.S

Log Message:
Fix bug in mips3_proc_trampoline: SR wasn't disabled on entry, allowing an
interrupt to sneak in after EXL had been set; the interrupt EPC was stale
as PC isn't saved if EXL is set, causing the eret to return to the wrong
place and leading to kernel-mode TLB misses on user addresses.  The bug
was discovered by the japanese NetBSD/*mips folks and the same fix was
found independently by shinohara-san (shin%netbsd.org@localhost).


To generate a diff of this commit:
cvs rdiff -r1.69 -r1.70 syssrc/sys/arch/mips/mips/locore_mips3.S

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.