Date: Thu, 24 Sep 2020 12:04:03 -0700 From: Mark Millard <marklmi@yahoo.com> To: Robert Crowston <crowston@protonmail.com>, freebsd-arm <freebsd-arm@freebsd.org> Subject: head -r365677 and later do not have the xhci related DMA problem fixed Message-ID: <5A60B29E-0D24-480C-807D-4A5E92D9C92A@yahoo.com> References: <5A60B29E-0D24-480C-807D-4A5E92D9C92A.ref@yahoo.com>
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I finally got around to updating the systems that I have access to, including the 8 GiByte RPi4B, from head -r363590 to -r363932 . This puts the sytem after then head -r365677 check in of the attempted DMA fix that involved restricting the xhci DMA range to 1 GiByte. I've tested head -r363932 under uefi/ACPI v1.20 with the 3072 limit disabled and it failed the large file duplicate and diff/cmp test: # cp -aRx /usr/obj/clang-armv7-on-aarch64.tar = /usr/obj/clang-armv7-on-aarch64.alt_tar # diff /usr/obj/clang-armv7-on-aarch64.tar = /usr/obj/clang-armv7-on-aarch64.alt_tar Binary files /usr/obj/clang-armv7-on-aarch64.tar and = /usr/obj/clang-armv7-on-aarch64.alt_tar differ # cmp -l /usr/obj/clang-armv7-on-aarch64.tar = /usr/obj/clang-armv7-on-aarch64.alt_tar | head -30 2633269249 3 0 2633269251 3 0 2633269252 55 0 2633269253 6 0 2633269254 21 0 2633269255 227 0 2633269256 1 0 2633269257 135 0 2633269258 336 0 2633269259 22 140 2633269260 0 100 2633269261 346 0 2633269262 353 0 2633269265 227 0 2633269266 1 160 2633269267 170 140 2633269268 336 100 2633269269 22 0 2633269271 362 0 2633269272 353 0 2633269275 227 0 2633269276 1 0 2633269277 225 0 2633269278 336 0 2633269279 22 0 2633269281 376 0 2633269282 353 1 2633269285 0 1 2633269289 0 223 2633269290 0 321 For reference: # ls -ldT /usr/obj/clang-armv7-on-aarch64* -rw-r--r-- 1 root wheel 11570948096 Jul 18 18:32:37 2020 = /usr/obj/clang-armv7-on-aarch64.alt_tar -rw-r--r-- 1 root wheel 11570948096 Jul 18 18:32:37 2020 = /usr/obj/clang-armv7-on-aarch64.tar (So the over 10 GiByte original file is significantly larger than the 8 GiByte RAM.) =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)
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