fwts-collect addition

[Colin Ian King]

On 25/08/12 01:24, Chris Van Hoof wrote:
> Hey guys -- I've been noticing we often ask for the output of
> intel_reg_dumper from the intel-gpu-tools package, typically a run
> before and after s3, or some form of corruption.

Are there any particular registers we should be spying on to do a 
comparison before/after in S3 for automatic sanity checking rather than 
just at the fwts-collect data collection phase?

>
> Since the bulk of machines we're working on already have fwts installed,
> I thought of adding intel_reg_dumper as a new function and running it if
> /sys/module/i915 exists in fwts-collect. Problem is, it requires sudo to
> run, which none of the existing tests in fwts-collect require.

Actually, to get all the data, fwts-collect should be run with sudo. I 
suspect we forgot to check for that (bug)

>
> Just curious if any of you have any thoughts here or if something like
> this would be better served by just using intel_reg_dumper directly
> opposed to integrating it into fwts-collect.
>
> Here is a strace snippet filtering on files accessed when executing the
> command for reference:
>
> """
> # strace -e trace=file -o strace.out intel_reg_dumper
> execve("/usr/bin/intel_reg_dumper", ["intel_reg_dumper"], [/* 18 vars
> */]) = 0
> access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or
> directory)
> access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or
> directory)
> open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
> access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or
> directory)
> open("/usr/lib/x86_64-linux-gnu/libpciaccess.so.0", O_RDONLY|O_CLOEXEC) = 3
> access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or
> directory)
> open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
> access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or
> directory)
> open("/lib/x86_64-linux-gnu/libz.so.1", O_RDONLY|O_CLOEXEC) = 3
> stat("/sys/bus/pci/devices", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
> open("/proc/mtrr", O_WRONLY)            = 3
> openat(AT_FDCWD, "/sys/bus/pci/devices",
> O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 4
> open("/sys/bus/pci/devices/0000:00:00.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:02.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:16.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:19.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1a.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1b.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1c.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1c.1/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1c.3/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1c.4/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1c.6/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1d.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1f.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1f.2/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:1f.3/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:03:00.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:0d:00.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:0e:00.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:02.0/config", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:02.0/resource", O_RDONLY) = 4
> open("/sys/bus/pci/devices/0000:00:02.0/resource0", O_RDWR) = 4
> """
>
> --chris
>