Messages in this thread | | | Date | Mon, 04 May 2015 15:50:39 +0800 | From | Yu Chen <> | Subject | Re: [4.1-rc1][Hibernation failed] bisect result included |
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On 05/04/2015 02:24 AM, Martin Steigerwald wrote: > Am Sonntag, 3. Mai 2015, 15:54:39 schrieb Chen, Yu C: >> Hi,all, > > Hello! > >> When we are doing QA test, a hibernation failor was found on latest kernel 4.1-rc1, >> resume from hibernation failed with the following error: >> >> PM: Hibernation image not present or could not be loaded. >> >> Bisect shows following commit might trigger this problem: >> commit 283e7ad0241155710f99a9f39d13313a53336926 >> >> The reason for failor is that, some distribution use klibc in initrd >> to restore the image, and klibc will provide kernel with the device >> format of major:minor:offset, >> for example, 8:3:0 represents a swap partition, and klibc will >> echo 8:3:0 > /sys/power/resume to resume the system manually. >> However in current implementation, format of 8:3:0 will be regarded >> as an invalid device, so restoring from hibernation failed. >> >> Do we need to add support for device format like 8:3:0? >> I'm happy to debug more specifically if you can let me know what >> would be of use, and I've also attached a temporary patch >> for this problem, not sure if it is suitable, thanks. > > Wow, great. > > I just reported this as well, but you bisected it already. > Oh, I saw your thread :) > So seems Debian´s initramfs uses klibc. Appears so: > The place where klibc stores the major:minor:offset to sysfs is: klibc/usr/kinit/resume/resumelib.c: resume
> https://wiki.debian.org/initramfs > > merkaba:/boot> lsinitramfs -l initrd.img-4.0.1-tp520-btrfs-trim-norace+ | egrep "klibc|libc.so" > -rwxr-xr-x 1 root root 1729984 Apr 15 02:01 lib/x86_64-linux-gnu/libc.so.6 > -rwxr-xr-x 1 root root 71416 Oct 5 2014 lib/klibc-IpHGKKbZiB_yZ7GPagmQz2GwVAQ.so > > It seems to contain a glibc as well. > > Ciao, >
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