On Mon, 2011-11-21 at 17:20 +0000, Michael Brown wrote: > On Monday 21 Nov 2011 17:04:18 Kenneth MacDonald wrote: > > OK, that did indeed work. I should really have guessed that since I had > > read the patch that renamed the file! > > > > Anyway, on machines it works I see (in red) > > > > Found command line "...my command line..." > > Using command line "...my command line..." > > > > And on machines it doesn't work on I see ... > > > > Found command line "" > > Using command line "" > > OK, that shows that cmdline_phys _is_ being set to a non-zero value, but that > it seems to be pointing to an empty string. > > Could you try the attached patch (with DEBUG=runtime) on both working and non- > working machines? It should show both the original address of the command > line and the content.
That gave me a dump starting at 00099000 and going to 0009901f. On the machines that worked I could see the correct contents, starting 65 63 ... the first two characters of "echo". On the machines that didn't work, the dump was of the same location in memory, but everything was zeroed out. I've confirmed that the kernel command line comes through on all these machines by booting into Linux and looking at /proc/cmdline. Cheers, Kenny. -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. _______________________________________________ ipxe-devel mailing list [email protected] https://lists.ipxe.org/mailman/listinfo/ipxe-devel
