From: "Anton Wöllert" <a.woellert@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: ptrace on linux 2.6.12 causes oops
Date: Thu, 14 Jul 2005 17:11:24 +0200 [thread overview]
Message-ID: <faba779805071408115179b292@mail.gmail.com> (raw)
In-Reply-To: <faba77980507140809ad923db@mail.gmail.com>
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it's on a tqm850l with mpc850. i've done the following:
in update_mmu_cache:
if (!PageReserved(page)
&& !test_bit(PG_arch_1, &page->flags)) {
// if (vma->vm_mm == current->active_mm){
// _tlbie(address);
// __flush_dcache_icache((void *) address);
// } else
__flush_dcache_icache(page _address(page));
// flush_dcache_icache_page(page);
set_bit(PG_arch_1, &page->flags);
}
like it is in ppc64. now it works. the flush_dcache_icache_page calls
__flush_dcache_icache_phys, which temporary turns off the mmu for
data-addressing. a bit strange i think. but unfortunately i have too less
knowledge about kernel-internal ppc-stuff :(
anton
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next prev parent reply other threads:[~2005-07-14 15:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <42C1AAC1.4060702@gmail.com>
[not found] ` <20050629085913.GA2153@logos.cnet>
[not found] ` <faba7798050630071347d4ad63@mail.gmail.com>
2005-07-01 9:44 ` mpc8xx and ld.so problem Marcelo Tosatti
2005-07-01 14:55 ` Jason McMullan
2005-07-01 10:17 ` Marcelo Tosatti
2005-07-01 18:56 ` Jason McMullan
2005-07-01 14:42 ` Marcelo Tosatti
2005-07-04 8:22 ` Yuli Barcohen
2005-07-05 19:53 ` Tom Rini
2005-07-06 8:58 ` Yuli Barcohen
2005-07-08 0:36 ` Marcelo Tosatti
2005-07-10 7:31 ` Yuli Barcohen
2005-07-13 15:41 ` Theo Gjaltema
2005-07-13 20:32 ` Wolfgang Denk
2005-07-13 21:32 ` Theo Gjaltema
2005-07-13 23:11 ` Wolfgang Denk
2005-07-14 5:44 ` Anton Wöllert
2005-07-14 8:23 ` ptrace on linux 2.6.12 causes oops Anton Wöllert
2005-07-14 13:31 ` Kumar Gala
2005-07-14 11:20 ` Marcelo Tosatti
[not found] ` <faba77980507140809ad923db@mail.gmail.com>
2005-07-14 15:11 ` Anton Wöllert [this message]
2005-07-14 20:27 ` aris
2005-07-14 11:19 ` Marcelo Tosatti
2005-07-15 9:42 ` Anton Wöllert
2005-07-15 5:03 ` Marcelo Tosatti
2005-07-03 16:01 ` mpc8xx and ld.so problem Anton Wöllert
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