[REGRESSION] 3.13-rc2: locks up hard on trying to transfer a file to mmc based internal SD card slot

[Martin Steigerwald <Martin@lichtvoll.de>]

Hi!

Just does that on a ThinkPad T520 with:

merkaba:~> lspci -nn | grep MMC
0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host Controller 
[1180:e823] (rev 08)

Mouse pointer freezes, no Ctrl-Alt-F1.


merkaba:~> fdisk -l /dev/mmcblk0

Disk /dev/mmcblk0: 31.4 GB, 31439454208 bytes
255 heads, 63 sectors/track, 3822 cylinders, total 61405184 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            8192    61405183    30698496    c  W95 FAT32 (LBA


merkaba:/sys/block/mmcblk0#2> grep . * 2>/dev/null
alignment_offset:0
capability:10
dev:179:0
discard_alignment:0
ext_range:8
force_ro:0
inflight:       0        0
range:8
removable:0
ro:0
size:61405184
stat:     176       33     1672      102        0        0        0        0        
0      102      102
uevent:MAJOR=179
uevent:MINOR=0
uevent:DEVNAME=mmcblk0
uevent:DEVTYPE=disk


I do not want to take the time to diagnose this further, especially as its one 
of those nasty "I just lock up and I don´t tell you what went wrong" kind of 
bugs. Thats just not a nice way to tell that there has been an error.


If there is any five or ten minute information gathering task, I am willing to 
provide more information, but right now there is no chance on Earth that I 
will be bisecting while having a long list of more interesting things to do 
than that.


Thus for now I just use 3.12 kernel again. Maybe I will try with some rc5 or 
so again.

Ciao,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7