-----Original Message-----
> > makedumpfile doesn't have any switch which dumps VMCOREINFO from kcore
> > for now. (I'm thinking to have makedumpfile dump it as debug message,
> > though.)
>
> Might be useful as people are looking into using VMCOREINFO when
> debugging a live kernel...
Now makedumpfile in 'devel' branch can print VMCOREINFO in /proc/kcore
as debug message with the following command:
# ./makedumpfile --mem-usage /proc/kcore -D
...
VMCOREINFO :
OSRELEASE=4.20.0-0.rc2.git0.1.fc30.x86_64
PAGESIZE=4096
page_size : 4096
SYMBOL(init_uts_ns)=ffffffff84213540
...
Also, it seems that recent crash utility in git repo with kernel 4.19
or newer can dump it with 'help -n' command:
# ./crash vmlinux /proc/kcore
...
crash> help -n
...
Elf64_Nhdr:
n_namesz: 11 ("VMCOREINFO")
n_descsz: 1955
n_type: 0 (unknown)
OSRELEASE=4.20.0-0.rc2.git0.1.fc30.x86_64
PAGESIZE=4096
SYMBOL(init_uts_ns)=ffffffff84213540
...
Thanks,
Kazu
