On Thu, Apr 26, 2018 at 9:19 AM, Naresh Kamboju naresh.kamboju@linaro.org 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