5 mar 2012 kl. 18:39 skrev John Baldwin <j...@freebsd.org>:
> On Saturday, March 03, 2012 7:06:14 pm Christoph Hoffmann wrote:
>> Hello,
>>
>> I think this bug has been fix by John Baldwin (see below) after he found
>> that HP
>> implemented 'e09127r3 EDD-4 Hybrid MBR boot code annex' dated
>> 4 January 2010.
>>
>> Maybe John could shade some light on it?
>
> Hmm, this fix should be in 9.0, so I don't have an explanation for why booting
> on 9.0 would still be broken.
Ok, that's odd. I tried 9.0, it does fail, and the printf actually makes it
work.
Palle
>
>> Regards,
>>
>> Christoph
>>
>> Author: jhb
>> Date: Wed Nov 9 18:26:19 2011
>> New Revision: 227400
>> URL:
>> http://svn.freebsd.org/changeset/base/227400
>>
>> Log:
>> MFC 226748:
>> - Add a new header for the x86 boot code that defines various structures
>> and constants related to the BIOS Enhanced Disk Drive Specification.
>> - Use this header instead of magic numbers and various duplicate structure
>> definitions for doing I/O.
>> - Use an actual structure for the request to fetch drive parameters in
>> drvsize() rather than a gross hack of a char array with some magic
>> size. While here, change drvsize() to only pass the 1.1 version of
>> the structure and not request device path information. If we want
>> device path information you have to set the length of the device
>> path information as an input (along with probably checking the actual
>> EDD version to see which size one should use as the device path
>> information is variable-length). This fixes data smashing problems
>> from passing an EDD 3 structure to BIOSes supporting EDD 4.
>>
>> Approved by: re (kib)
>>
>> --
>> Christoph Hoffmann
>>
>> On Mar 1, 2012, at 10:39 PM, Palle Girgensohn wrote:
>>
>>> Hi!
>>>
>>> This is still happening with FreeBSD 9.0-RELEASE, as I have just
>>> discovered. The hack works like a charm, but seems kind of odd... :)
>>>
>>> Any progress in getting a "real" fix into the repository? Any risks with
>>> the hack - is it likely to believe that it will suddenly or sporadically
>>> fail?
>>>
>>> Cheers,
>>> Palle
>>>
>>> Christoph Hoffmann skrev:
>>>> Hello Daniel,
>>>>
>>>> Last time I checked up on the issue was on the 23rd of September,
>>>> it was not fixed then.
>>>> I was able to to boot from drive 0x80 after adding:
>>>>
>>>> *** zfsboot.c.orig Fri Sep 23 18:03:26 2011
>>>> --- zfsboot.c Fri Sep 23 18:47:44 2011
>>>> ***************
>>>> *** 459,464 ****
>>>> --- 459,465 ----
>>>> heap_end = (char *) PTOV(bios_basemem);
>>>> }
>>>>
>>>> + printf("Hello! I am a hack.\n");
>>>> dsk = malloc(sizeof(struct dsk));
>>>> dsk->drive = *(uint8_t *)PTOV(ARGS);
>>>> dsk->type = dsk->drive & DRV_HARD ? TYPE_AD : TYPE_FD;
>>>>
>>>> I am inclined to think that this is related to the way how we compile this
>>>> code,
>>>> especially when run on the following particular processor:
>>>>
>>>> 1 Processor(s) detected, 4 total cores enabled, Hyperthreading is enabled
>>>> Proc 1: Intel(R) Xeon(R) CPU E5630 @ 2.53GHz
>>>> QPI Speed: 5.8 GT/s.
>>>>
>>>>
>>>> Regards,
>>>>
>>>> Christoph
>>>>
>>>>
>>>> On Oct 11, 2011, at 3:16 PM, Daniel Kalchev wrote:
>>>>
>>>>> Has this issue been resolved somehow? Sane method to build gptzfsboot
>>>>> that will run on HP's P410i?
>>>>>
>>>>> Daniel
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>>
>>
>
> --
> John Baldwin
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