Ticket #2025 (closed defect: fixed)

Opened 11 years ago

Last modified 21 months ago

Glamo problem: 4GB SD I/O errors with glamo_mci.sd_max_clk=10000000 and no suspend

Reported by: GNUtoo Owned by: openmoko-kernel
Priority: normal Milestone:
Component: kernel Version:
Severity: blocker Keywords:
Cc: Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: no PatchReviewResult:


i've tried to install debian 2008.8 and 2008.9 on a 4GB micro-sd card(MMBGR04GUACY-NA) and it always exits from the install sooner or later because of I/O errors...
Once i've even successfully done the following without I/O errors:
dd if=/dev/urandom of=./random
but when i deleted random i did get I/O errors.
I'll attach a full dmesg log


dmesg (15.3 KB) - added by GNUtoo 11 years ago.
dmesg before the debian install
logread.txt (93.7 KB) - added by GNUtoo 11 years ago.
logread > logread.txt && logread -f>>logread.txt then head -n 1000 logread.txt

Change History

comment:1 Changed 11 years ago by GNUtoo

I've also had 2 screen corruption:
*the first time that i've got a tv-like corruption
*the second time it was like when a CRT monitor had the wrong frequency: one night i kept it on and connected to the power trough the power and it gave me that corruption.

here's my setup:
# cat /proc/cmdline
glamo_mci.sd_max_clk=10000000 rootfstype=jffs2 root=/dev/mtdblock6 console=ttySAC2,115200 console=tty0 loglevel=8 regular_boot mtdparts=physmap-flash:-(nor);neo1973-nand:0x00040000(u-boot),0x00040000(u-boot_env),0x00800000(kernel),0x000a0000(splash),0x00040000(factory),0x0f6a0000(rootfs)
2008.9 distribution

Changed 11 years ago by GNUtoo

dmesg before the debian install

Changed 11 years ago by GNUtoo

logread > logread.txt && logread -f>>logread.txt then head -n 1000 logread.txt

comment:2 Changed 11 years ago by GNUtoo

the debian install exited at this point:
P: Configuring helper cdebootstrap-helper-rc.d
E: Internal error: install

comment:3 Changed 11 years ago by andy

I think we will find everything about this that is to do with SD Card is downstream of the real problem, which seems to be Glamo communication generally.

Unfortunately the kernel you're running is before the change to Memory clock PLL on Glamo from 81 -> 89MHz, that would have been a nice explanation that some Glamo devices can't handle it. But you are already at 81MHz.

Where did this kernel come from, is it a normal packaged kernel?

comment:4 Changed 11 years ago by GNUtoo

this time the kenrel comes from 2008.9...stock kernel...

comment:5 Changed 11 years ago by john_lee

  • Owner changed from openmoko-devel to openmoko-kernel
  • HasPatchForReview unset
  • Component changed from unknown to System Software

comment:6 Changed 11 years ago by kd8ikt

i get this with a 4gb class 6 sdhc when trying to mkfs to anypartition wich seems to be past the 1GB marker,fdisk says the drive is a little over 4gb that cant be right normally its the other way around

comment:7 Changed 10 years ago by PaulFertser

  • Status changed from new to closed
  • Resolution set to fixed

Please try with the maximum sd_drive (sd lines drive strength) setting.

There're known issues with some cards that pick GSM interference and refuse to work while others in the same device and network conditions work ok. I'm not sure anything can be done with this, just try to get a card that works good.

Fixing as "all the relevant glamo sdi tweaks are exposed to user, we can't do any better".

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