I'm trying to debug some late-suspend hang. However while I tried to use pstore it doesn't seems to work with no indication why: % dmesg| grep -i pstore [ 1.736649] pstore: Registered efi as persistent store backend % cat /sys/module/pstore/parameters/backend efi % zcat /proc/config.gz | grep -i PSTORE CONFIG_EFI_VARS_PSTORE=y # CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE is not set CONFIG_PSTORE=y CONFIG_PSTORE_CONSOLE=y CONFIG_PSTORE_PMSG=y CONFIG_PSTORE_RAM=y % ls /sys/fs/pstore -al total 0 drwxr-xr-x 2 root root 0 Sep 2 11:06 . drwxr-xr-x 8 root root 0 Sep 2 11:06 .. % sudo touch /sys/fs/pstore/foo touch: cannot touch '/sys/fs/pstore/foo': Permission denied % mount | grep pstore pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) Any idea why I cannot get pstore to work? -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
