On Tue, Aug 26, 2014 at 6:47 AM, Pavel Machek <pa...@denx.de> wrote: > Hi! > >> > > mmc0: new SDHC card at address b368 >> > > mmcblk0: mmc0:b368 USD 7.45 GiB >> > > mmcblk0: p1 p2 p3 p4 >> > > VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error >> > > -6 >> > > Please append a correct "root=" boot option; here are the available >> > > partitions: >> > > b300 7822336 mmcblk0 driver: mmcblk >> > > b301 102400 mmcblk0p1 00082434-01 >> > > b302 1048576 mmcblk0p2 00082434-02 >> > > b303 1024 mmcblk0p3 00082434-03 >> > > b304 6086656 mmcblk0p4 00082434-04 >> > > Kernel panic - not syncing: VFS: Unable to mount root fs on >> > > unknown-block(0,0) >> > > CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-11208-gef74117-dirty >> > > #2 >> > >> > Hmm...today's tip-top(899552d6) and ba36899 booted just fine for me. I >> > noticed something, you must have commits on top of your ba36899? Mine >> > shows 3.16.0-11149-gba36899. >> >> Ok, thanks for info. I went back to 3.16, and it worked in same >> config, and went to 3.17, and it broke. > > The problem is still there in 3.17-rc2. 3.16 does not have the > problem. Messages are still similar: > > mmc0: new high speed SDHC card at address b368 > mmcblk0: mmc0:b368 USD 7.45 GiB > mmcblk0: p1 p2 p3 p4 > VFS: Cannot open root device "mmcblk0p2" or unknown-block(0,0): error > -6 > Please append a correct "root=" boot option; here are the available > partitions: > b300 7822336 mmcblk0 driver: mmcblk > b301 102400 mmcblk0p1 00082434-01 > b302 1048576 mmcblk0p2 00082434-02 > b303 1024 mmcblk0p3 00082434-03 > b304 6086656 mmcblk0p4 00082434-04 > Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) > CPU: 0 PID: 1 Comm: swapper/0 Not tainted > 3.17.0-rc2-00368-gec0400b-dirty #83 > > > What is going on there? Clearly partition table was parsed and > partitions are available; does the mention of unknown-block(0,0) mean > that kernel failed to parse the command line? > > I replaced "root=/dev/mmcblk0p2" with "root=b302" and have a booting > system.
Can you do a bisect? 3.17-rc2 booted fine for me today: EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode VFS: Mounted root (ext3 filesystem) on device 179:2. Freeing unused kernel memory: 252K (c052d000 - c056c000) random: nonblocking pool is initialized Poky 8.0 (Yocto Project 1.3 Reference Distro) 1.3 socfpga_cyclone5 ttyS0 socfpga_cyclone5 login: root root@socfpga_cyclone5:~# uname -a Linux socfpga_cyclone5 3.17.0-rc2-00006-gdd7ad78 #1 SMP Tue Aug 26 15:51:56 CDT 2014 armv7l GNU/Linux Dinh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
