Date: Mon, 21 Dec 2020 23:11:57 -0600 From: "Brandon Bergren" <bdragon@FreeBSD.org> To: "FreeBSD PowerPC ML" <freebsd-ppc@freebsd.org> Subject: =?UTF-8?Q?Re:_Old_PowerMac_G5_2-socket/2-cores-each:_head_-r368820_kerne?= =?UTF-8?Q?l_reports:_bus=5Fdmamem=5Falloc_failed_to_align_memory_proper?= =?UTF-8?Q?ly?= Message-ID: <66ce8494-204b-4b8b-a043-94ba00509f41@www.fastmail.com> In-Reply-To: <04727338-1ecb-4a94-c8e9-dcef7abd1513@blastwave.org> References: <FE22D733-35A2-4FB4-83D7-1E953A53AC34.ref@yahoo.com> <FE22D733-35A2-4FB4-83D7-1E953A53AC34@yahoo.com> <40dead6f-2a69-cf74-0a23-cde56dd90510@blastwave.org> <53f15d43-62c3-e12c-f8db-ede6a30e4e95@blastwave.org> <46726BE0-00FF-4DE7-835B-C7B04F3B0693@yahoo.com> <04727338-1ecb-4a94-c8e9-dcef7abd1513@blastwave.org>
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On Mon, Dec 21, 2020, at 10:25 PM, Dennis Clarke via freebsd-ppc wrote: > On 12/21/20 11:03 PM, Mark Millard wrote: > > > As far as I know, 32-bit powerpc for old PowerMacs still has the kernel > > gradually zeroing out user-space pages, even for single-socket/single-core > > 32-bit PowerMacs. So I run 32-bit via a chroot on a 64-bit system: the > > 64-bit kernel does not have this specific problem. (I seem to remember > > that there was a different boot failure last I tried 32-bit, but I do not > > remember any detail at this time.) This is the bridge mode bug that we haven't figured out yet. It's specific to the G5 running a 32 bit kernel. The problem doesn't manifest on actual 32-bit MMUs. -- Brandon Bergren bdragon@FreeBSD.org
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