From: ilya@theIlya.com
To: linux-mips@linux-mips.org
Cc: ralf@linux-mips.org
Subject: update_mmu_cache bug
Date: Tue, 10 Dec 2002 11:18:01 -0800 [thread overview]
Message-ID: <20021210191801.GF609@gateway.total-knowledge.com> (raw)
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Following small patch is needed to prevent kernel from going into infinite loop
on page_fault. Probably similar patches are needed for other CPUs as well,
but since I don;t have any, I'll let those who do take care of that :)
Ilya.
Index: arch/mips64/mm/tlb-r4k.c
===================================================================
RCS file: /home/cvs/linux/arch/mips64/mm/tlb-r4k.c,v
retrieving revision 1.9
diff -u -r1.9 tlb-r4k.c
--- arch/mips64/mm/tlb-r4k.c 2 Dec 2002 00:27:49 -0000 1.9
+++ arch/mips64/mm/tlb-r4k.c 10 Dec 2002 17:02:30 -0000
@@ -260,8 +260,9 @@
tlb_probe();
BARRIER;
pmdp = pmd_offset(pgdp, address);
+
idx = read_c0_index();
- ptep = pte_offset(pmdp, address);
+ ptep = pte_offset_map(pmdp, address);
BARRIER;
write_c0_entrylo0(pte_val(*ptep++) >> 6);
write_c0_entrylo1(pte_val(*ptep) >> 6);
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next reply other threads:[~2002-12-10 19:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-10 19:18 ilya [this message]
2002-12-10 21:00 ` update_mmu_cache bug Brian Murphy
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