On Thu, Apr 26, 2018 at 9:19 AM, Naresh Kamboju
<naresh.kamboju@xxxxxxxxxx> wrote:
> pstore_tests failed on x86_64 device.
> This test pass at your end ? If yes, what are pre-requirements ?
>
> Linux kernel version: 4.17.0-rc1
>
> + ./pstore_tests
> === Pstore unit tests (pstore_tests) ===
> UUID=ffa28670-e941-478a-a3c0-2fdad1df8195
> Checking pstore backend is registered ... ok
> backend=(null)
> cmdline=root=/dev/nfs rw nfsroot=10.66.16.116:
> /var/lib/lava/dispatcher/tmp/198332/extract-nfsrootfs-yqsi5ya0,tcp,hard,intr
> backend=ramoops ramoops.mem_address=0x30000000 ramoops.mem_size=0x10000 ip=dhcp
> console=ttyS0,115200n8 lava_mac={LAVA_MAC}
I don't think these arguments are sufficient for a simulated ramoops
area: I think you need to _remove_ a memory region from System RAM
too. For example, I see the tests work fine with this (note the
"memmap=" line):
=== Pstore unit tests (pstore_tests) ===
UUID=18baf487-2cd6-41b6-b3c0-27dce52b58eb
Checking pstore backend is registered ... ok
backend=ramoops
cmdline=console=uart,io,0x3f8,115200n8 loglevel=8
root=/dev/vda1 ro memmap=64K%0x3fff00000+12 ramoops.mem_size=65536
ramoops.mem_address=0x3fff00000
Checking pstore console is registered ... ok
Checking /dev/pmsg0 exists ... ok
Writing unique string to /dev/pmsg0 ... ok
dmesg sees:
[ 0.486072] pstore: using deflate compression
[ 0.832419] ramoops: using module parameters
[ 0.834161] console [pstore-1] enabled
[ 0.834677] pstore: Registered ramoops as persistent store backend
[ 0.835276] ramoops: attached 0x10000@0x3fff00000, ecc: 0/0
and /proc/iomem shows the hole:
...
100000000-3ffefffff : System RAM
3fff00000-3fff0ffff : Persistent Memory (legacy)
3fff10000-43fffffff : System RAM
-Kees
> Checking pstore console is registered ... FAIL
> Checking /dev/pmsg0 exists ... FAIL
> Writing unique string to /dev/pmsg0 ... FAIL
>
> Following config enabled,
>
> CONFIG_EFI_VARS_PSTORE=y
> CONFIG_PSTORE=y
> CONFIG_PSTORE_DEFLATE_COMPRESS=y
> ONFIG_PSTORE_COMPRESS=y
> CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
> CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
> CONFIG_PSTORE_CONSOLE=y
> CONFIG_PSTORE_PMSG=y
> CONFIG_PSTORE_RAM=m
>
> Please suggest a way to get this working.
>
> Complete boot log and test details link,
> https://lkft.validation.linaro.org/scheduler/job/198332#L230
--
Kees Cook
Pixel Security
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