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| author | He Zhe <zhe.he@windriver.com> | 2018-07-08 20:14:43 -0700 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2018-07-10 17:33:00 +0100 |
| commit | c68e4c6e3eb612bb7afd9d7f1e9a6dc295d44346 (patch) | |
| tree | fe09ce9482cdc31da8a24cb7adc9ea7927025f56 /scripts/bitbake-prserv-tool | |
| parent | 78fae8676d5c4d522a14cd31df274a33a6a53445 (diff) | |
| download | poky-c68e4c6e3eb612bb7afd9d7f1e9a6dc295d44346.tar.gz | |
scripts/runqemu: fix qemumips qemumips64 memory detection kernel panic
$ runqemu qemumips64 core-image-minimal nographic qemuparams="-m 512"
...
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff801268c0>] clear_page+0x0/0x128
[ 0.000000] [<ffffffff80238158>] get_page_from_freelist+0xab8/0xc00
[ 0.000000] [<ffffffff80238964>] __alloc_pages_nodemask+0xdc/0xf68
[ 0.000000] [<ffffffff80239808>] __get_free_pages+0x18/0x70
[ 0.000000] [<ffffffff80122a4c>] setup_zero_pages+0x1c/0xb8
[ 0.000000] [<ffffffff80c7c998>] mem_init+0x54/0xa0
[ 0.000000] [<ffffffff80c74904>] start_kernel+0x204/0x4d8
[ 0.000000] [<ffffffff8091dfb0>] kernel_entry+0x0/0x40
[ 0.000000] Code: 02002025 1000f8d9 8e634d7c <34860f80> cc9e0000
cc9e0020 cc9e0040 cc9e0060 cc9e0080
[ 0.000000]
[ 0.000000] ---[ end trace 0000000000000000 ]---
[ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task!
...
OE uses qemumips to simulate a Malta board by default.
As upstream qemu introduced:
https://git.qemu.org/?p=qemu.git;a=commit;h=94c2b6aff43cdfcfdfb552773a6b6b973a72ef0b
The Malta board can support up to 2GiB of RAM which should
be able to boot a Linux kernel built with CONFIG_HIGHMEM
enabled and passing "-m 2048" to QEMU and appending the
following kernel parameters:
...
mem=256M@0x0 mem=256M@0x90000000 mem=1536M@0x20000000
...
But the following commit in kernel broke above mem=X@Y setting
which added the memory as reserved memory area.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=73fbc1eba7ffa3bf0ad12486232a8a1edb4e4411
...
commit 73fbc1eba7ffa3bf0ad12486232a8a1edb4e4411
Author: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Date: Wed Nov 23 14:43:49 2016 +0100
MIPS: fix mem=X@Y commandline processing
...
So remove `mem=*' to disable user-defined physical RAM map
which let kernel itself caculates memory ranges.
Author: Hongxu Jia <hongxu.jia@windriver.com>
[ Merge the two fixes for qemumips32 and qemumips64 into one patch,
and make it support all mips cases ]
(From OE-Core rev: 0220cb34a91658ecc3782ec1a4700dcb5ece37d8)
Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/bitbake-prserv-tool')
0 files changed, 0 insertions, 0 deletions