From: Benjamin Herrenschmidt <bh40@calva.net>
To: Gabriel Paubert <paubert@iram.es>, <linuxppc-dev@lists.linuxppc.org>
Subject: Re: 2.4.0-test3
Date: Tue, 11 Jul 2000 17:57:56 +0200 [thread overview]
Message-ID: <20000711155756.6478@mailhost.mipsys.com> (raw)
In-Reply-To: <Pine.HPX.4.10.10007111341520.9548-100000@gra-ux1.iram.es>
>In this case, are we sure that the 601 problems are introduced by this
>change ? Historically, there have been other 601 related problems, like
>code touching HID0 without checking processor version or so.
>
>Another possibility is an ordering problem, it seems that the code
>reloads all the BATs from the BAT array setup by mm/init.c. Is it possible
>that the crash happens this late and do you still need BAT3 after this ?
>
>Maybe the fix will be as simple as writing 0 to the IBATL in LOAD_BAT so
>that we are sure that the BAT is disabled before being reloaded, or call
>again clear_bats before the series of LOAD_BATs.
Well, Andreas re-did the tests with my latest fix (which was to remove
the bogus PAGE_GUARDED in the 601 case) and with the mftb 601 fixes and
his kernel now works.
Ben.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-07-11 15:57 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-10 11:56 2.4.0-test3 Iain Sandoe
2000-07-10 12:10 ` 2.4.0-test3 Benjamin Herrenschmidt
2000-07-10 15:07 ` 2.4.0-test3 Andreas Tobler
2000-07-10 16:05 ` 2.4.0-test3 Benjamin Herrenschmidt
2000-07-10 18:30 ` 2.4.0-test3 Andreas Tobler
2000-07-10 21:48 ` 2.4.0-test3 Takashi Oe
2000-07-10 22:14 ` 2.4.0-test3 Benjamin Herrenschmidt
2000-07-10 22:20 ` 2.4.0-test3 Takashi Oe
2000-07-10 22:26 ` 2.4.0-test3 Andreas Tobler
2000-07-11 7:58 ` 2.4.0-test3 Gabriel Paubert
2000-07-11 8:45 ` 2.4.0-test3 Benjamin Herrenschmidt
2000-07-11 10:12 ` 2.4.0-test3 Gabriel Paubert
2000-07-11 10:41 ` 2.4.0-test3 Benjamin Herrenschmidt
2000-07-11 12:38 ` 2.4.0-test3 Gabriel Paubert
2000-07-11 15:57 ` Benjamin Herrenschmidt [this message]
2000-07-11 11:52 ` 2.4.0-test3 Takashi Oe
-- strict thread matches above, loose matches on Subject: below --
2000-07-10 16:12 2.4.0-test3 Iain Sandoe
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