linux-kernel - Re: x86/boot: add ramoops.mem_size=1048576 boot parameter cause can't boot

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Message-ID: <CAOzgRdaBukdDtCuYQe3wvAgtXmRrbtXcj6yD4bJvqO2xQmO+tA@mail.gmail.com>
Date:   Sat, 2 Nov 2019 13:41:08 +0800
From:   youling 257 <youling257@...il.com>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-efi@...r.kernel.org
Subject: Re: x86/boot: add ramoops.mem_size=1048576 boot parameter cause can't boot

On my v891w, i add "memmap=1M!2047M ramoops.mem_size=1048576
ramoops.ecc=1 ramoops.mem_address=0x7ff00000
ramoops.console_size=16384 ramoops.ftrace_size=16384
ramoops.pmsg_size=16384 ramoops.record_size=32768" boot parameter,
[ 0.483935] printk: console [pstore-1] enabled
[ 0.484034] pstore: Registered ramoops as persistent store backend
[ 0.484121] ramoops: using 0x100000@...ff00000, ecc: 16

But on my ezpad 6 m4, i add "memmap=1M!4095M ramoops.mem_size=1048576
ramoops.ecc=1 ramoops.mem_address=0xfff00000
ramoops.console_size=16384 ramoops.ftrace_size=16384
ramoops.pmsg_size=16384 ramoops.record_size=32768" boot parameter, it
can't boot, stop at "boot command list", no anyting happen, no dmesg.
I test boot parameter one by one, just add ramoops.mem_size=1048576,
will cause can't boot.

youling 257 <youling257@...il.com> 于2019年11月2日周六 上午10:26写道：
>
> Ram map
>
> [ 0.000000] BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000008efff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000000008f000-0x000000000008ffff] ACPI NVS
> [ 0.000000] BIOS-e820: [mem 0x0000000000090000-0x000000000009ffff] usable
> [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001effffff] usable
> [ 0.000000] BIOS-e820: [mem 0x000000001f000000-0x00000000201fffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000020200000-0x00000000b6de7fff] usable
> [ 0.000000] BIOS-e820: [mem 0x00000000b6de8000-0x00000000b6e08fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000b6e09000-0x00000000ba608fff] usable
> [ 0.000000] BIOS-e820: [mem 0x00000000ba609000-0x00000000ba698fff] type 20
> [ 0.000000] BIOS-e820: [mem 0x00000000ba699000-0x00000000baf18fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000baf19000-0x00000000bb018fff] ACPI NVS
> [ 0.000000] BIOS-e820: [mem 0x00000000bb019000-0x00000000bb058fff] ACPI data
> [ 0.000000] BIOS-e820: [mem 0x00000000bb059000-0x00000000bbffffff] usable
> [ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000e3ffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fea00000-0x00000000feafffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed01000-0x00000000fed01fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed03000-0x00000000fed03fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed06000-0x00000000fed06fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed08000-0x00000000fed09fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1cfff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fed80000-0x00000000fedbffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
> [ 0.000000] BIOS-e820: [mem 0x00000000ffc00000-0x00000000ffffffff] reserved
> [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000013fffffff] usable
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] efi: EFI v2.40 by INSYDE Corp.
> [ 0.000000] efi: ACPI 2.0=0xbb058014 SMBIOS=0xba6a9000 ESRT=0xba6ac918
> [ 0.000000] SMBIOS 2.8 present.
> [ 0.000000] DMI: jumper EZpad/EZpad, BIOS Jumper8.S106x.A00C.1066 12/22/2015
> [ 0.000000] tsc: Detected 1440.000 MHz processor
> [ 0.000298] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
> [ 0.000302] e820: remove [mem 0x000a0000-0x000fffff] usable
>
> youling 257 <youling257@...il.com> 于2019年11月2日周六 上午10:23写道：
> >
> > only add ramoops.mem_size=1048576 boot parameter cause can't boot on
> > my device, stop at booting command list, no anyting happen, no dmesg.
> >
> >