From: "Lu, Yinghai" <yinghai.lu@amd.com>
To: "Greg KH" <gregkh@suse.de>, ebiederm@xmission.com
Cc: "Peter Stuge" <stuge-linuxbios@cdy.org>,
linux-usb-devel@lists.sourceforge.net,
"Stefan Reinauer" <stepan@coresystems.de>,
linux-kernel@vger.kernel.org, linuxbios@linuxbios.org,
"Andi Kleen" <ak@suse.de>, "David Brownell" <david-b@pacbell.net>
Subject: RE: [LinuxBIOS] [linux-usb-devel] [RFC][PATCH 0/2] x86_64 Early usb debug port support.
Date: Thu, 7 Dec 2006 19:48:17 -0800 [thread overview]
Message-ID: <5986589C150B2F49A46483AC44C7BCA49072A5@ssvlexmb2.amd.com> (raw)
-----Original Message-----
From: linuxbios-bounces@linuxbios.org
[mailto:linuxbios-bounces@linuxbios.org] On Behalf Of
ebiederm@xmission.com
>Ok due to popular demands here is the slightly fixed patch that works
>on both i386 and x86_64. For the i386 version you must not have
>HIGHMEM64G enabled.
>I just rolled it all into one patch as I'm to lazy to transmit all
>3 of them.
I got
Firmware type: LinuxBIOS
Linux version 2.6.19-smp-gc9976797-dirty (root@lbsrv) (gcc version
4.0.2) #196 6
Command line: earlyprintk=ttyS0,115200 apic=debug pci=noacpi,routeirq
snd-hda-i
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 0000000000001000 (reserved)
BIOS-e820: 0000000000001000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000c0000 - 00000000000f0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000c0000000 (usable)
BIOS-e820: 0000000100000000 - 0000000240000000 (usable)
dbgp_num: 0
Found EHCI debug port
bar: 10 offset: 098
bar: 10 offset: 098
dbgp pre-set_fixmap_nocache
PANIC: early exception rip ffffffff809c24b4 error 0 cr2 ffff810000203ff8
Call Trace:
[<ffffffff809c24b4>] __set_fixmap+0x84/0x202
[<ffffffff809c05bb>] early_dbgp_init+0x259/0x55c
[<ffffffff8022d958>] __call_console_drivers+0x64/0x72
[<ffffffff809b242b>] do_early_param+0x0/0x57
[<ffffffff809c0a20>] setup_early_printk+0x162/0x17e
[<ffffffff809b2459>] do_early_param+0x2e/0x57
[<ffffffff8023d051>] parse_args+0x159/0x1f3
[<ffffffff809b24c2>] parse_early_param+0x40/0x4c
[<ffffffff809b88ca>] setup_arch+0x1c1/0x636
[<ffffffff809b2534>] start_kernel+0x55/0x208
[<ffffffff809b2173>] _sinittext+0x173/0x177
RIP __set_fixmap+0x84/0x202
With Greg's USB Debug, host and target can talk.
target with console=ttyUSB0,115200n8
host with cat /dev/ttyUSB0
But if use minicom in host, it will not show '\r', I guess the usb debug
cable eat return char. Greg, Can you add that back in usb_debug by
replacing '\n' with '\r', '\n'?
With Eric code in LinuxBIOS, it will report "No device found in debug
port"
YH
next reply other threads:[~2006-12-08 3:48 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 3:48 Lu, Yinghai [this message]
2006-12-08 7:14 ` Greg KH
2006-12-08 8:52 ` Yinghai Lu
2006-12-08 7:42 ` Eric W. Biederman
2006-12-08 8:53 ` Yinghai Lu
2006-12-08 9:07 ` Eric W. Biederman
2006-12-13 7:00 ` Yinghai Lu
2006-12-13 7:29 ` Eric W. Biederman
2006-12-13 10:09 ` Yinghai Lu
2006-12-13 10:41 ` Yinghai Lu
-- strict thread matches above, loose matches on Subject: below --
2006-12-09 3:16 Lu, Yinghai
2006-12-09 10:54 ` Peter Stuge
2006-12-07 22:06 Lu, Yinghai
2006-12-06 21:08 Lu, Yinghai
2006-12-07 9:51 ` [LinuxBIOS] " Peter Stuge
2006-12-06 0:00 Lu, Yinghai
2006-12-05 23:29 Lu, Yinghai
2006-12-05 23:50 ` Eric W. Biederman
2006-12-06 15:31 ` Segher Boessenkool
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