2.6.27-10 is still rock solid for me, at least with respect to write
errors. I've had no errors in the last four days, although if I'm
running other things like VirtualBox, it can take an unbelievably long
time to finish a copy (it just took 30 minutes to copy about 1 GB).
The very slow copy makes
I have a Samsung x20 notebook with lspci | grep Ricoh:
03:09.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b3)
03:09.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller (rev 08)
03:09.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter (rev 17)
03:09.3 System
Kernel 2.6.27-10-generic seems to have improved reliability for me - I
copied about 1GB to the SD card while running update-manager, a VM in
VirtualBox, copying files across USB, with free memory under 22 MB, and
didn't encounter any errors.
>From http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
int
@Richard: I can confirm that increasing the timeout to 500 ms from the
default 250 ms in Intrepid's 2.6.27-8-generic (amd64) kernel works much
better.
As a test, I copied 1.5 GB to my 2 GB card while simultaneously running
two VirtualBox VMs (for at least some of the time, one was booting up,
the
Regarding -110 error, looking at include/asm-generic/errno.h, 110 is
ETIMEDOUT, which kinda makes sense - this error only seems to occur if
the SD card is under load.
I had a look at drivers/mmc/core/core.c, in method mmc_set_data_timeout
(which is called directly before the 'mmcblk0: error -110 t
If it helps I've noticed that one way to reproduce it is to use Azureus
to download a torrent (eg an Ubuntu CD) and then copy a large file to
the SD card. While it's doing this I get heaps of mmcblk errors and
subsequent data loss. When I stop Azureus so the system is no longer
under load and try c
I think it is more of a timing issue than mechanical per se - I'm
running an own-build kernel (2.6.28-rc4) on top of intrepid on an acer
aspire one, and was experiencing 'mmcblk0: error -110 transferring data'
errors on a 16Gb SDHC card in the left hand slot.
The card was enabled for UDMA66 and hd
On my EeePC 900 (where the SD device actually appears on the USB bus) SD
cards seem to be especially unreliable (a good way to provoke problems
is to have an install on an SD card and to see how long it lasts before
mysterious "holes" appear in the filesystem). I have had no end of
problems with on
This bug is still present in 2.6.27-8-generic. Tested on an EeePC 701
with 8GB SanDisk SDHC.
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SDHC Card reader I/O errors on Hardy
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I've noticed that the write errors occur more frequently when the system
is under load, eg while copying large amounts of data between USB
drives, and when free memory is low.
The last time it happened, I was only running firefox and nautilus, so
the available memory (almost 3.5 GB was taken) must
This issue still exists in the final release of Intrepid. Running on a
701 EeePC using a 16GB A-Data SDHC. This bug prevents me booting with
the card inserted into the reader.
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Addendum: Hardy Heron, 8.04.1, 64-bit, on the LE1700 tablet
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I can confirm that I had no problems (r/w) using the very same 16 GB
SDHC with Hardy Heron on another tablet I own (Motion LE1700).
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My only problem is that I can't copy system files (like make backups of
source files I've downloaded/modified). If I do, the data that copies to
the SD card is corrupted, while the data on the computer remains intact.
Then Nautilus (sudo) won't allow me to delete the files, and I have to
go into Vi
Just tried the 8.10rc liveCD on my eeepc 701 and it also exhibits
problems with SDHC.
The internal reader can't read my 8GB Veho SDHC card and dmesg shows
"Buffer I/O write error on device sdb1". If i try to mount /dev/sdb1 I
get an error that the device does not exist. The card reader works fine
The latest 2.6.27-7-generic (i386 now, in case that makes a difference)
kernel works better. I still get the error occurring but far less
frequently, even with a VM running, and when it does occur the system
recovers more quickly (it also seems to be buffering much less, which
might explain the fas
Still present in 2.6.27-6-generic amd64. It's easily reproducible when I
run a VM in VirtualBox 2.0.2 and then try to copy a large file to the
card from nautilus.
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The bug is still present in kernel 2.6.27-5-generic amd64 (and I still
can't fdisk -l the mmcblk device).
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The bug is still present but now I can't use gparted to reformat the SD
card - the mmcblk device doesn't show up in the output of "fdisk -l" any
more, so gparted doesn't list its partitions. Has anyone else found this
is happening?
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SDHC Card reader I/O errors on Hardy
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It's still present in kernel 2.6.27-4. Worse still, nautilus doesn't
tell you there was data loss - if you are moving files, you lose data.
I've noticed it happens more frequently if I run a VMWare or VirtualBox
VM.
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Y
I've just tested my SDHC card in Kubuntu 8.10 Ibex Alpha 5 and the
kernel log errored out with a bunch of I/O errors very similar to those
in the first post. This bug is still present in Alpha 5! I'm guessing
this has something to do with the partial/improper SDHC card support in
the kernel itself.
I can confirm that this problem *is* still present in Intrepid Alpha 5. lspci
gives me (only relevant shown):
09:01.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05)
09:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter (rev 22)
09:01.2 System
Same error with one 4GB sdhc card.
With other 4GB sdhc and 2GB sd card it works nice.
Output of lspci:
04:04.0 CardBus bridge: O2 Micro, Inc. OZ711MP1/MS1 MemoryCardBus Controller
(rev 21)
and dmesg:
[ 1240.344360] mmc0: new SDHC card at address 0002
[ 1240.934122] mmcblk0: mmc0:0002 SD4GB 39516
** Tags added: linux-2.6.27
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel Team (ubuntu-kernel-team)
Status: New => Triaged
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SDHC Card reader I/O errors on Hardy
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I also have a 5920g-notebook running ubuntu hardy with this card reader
inside. SD cards are working perfectly, but MMC cards arent detected.
There is no card-reader-device in /dev when I insert MMC-Cards and there
is nothing in dmesg.
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SDHC Card reader I/O errors on Hardy
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The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
See attached logfile - the error occurred again today, only this time
the mmcblk driver appears to have corrupted itself.
The corrupted log occurred after I manually removed the card. (Normally
when these errors occur, it takes a very long time for the mmcblk driver
to stop trying to write, even a
Is anyone else running vmware? I have noticed that when a VM is running,
I frequently get these write errors, but when there is no VM it is much
less likely.
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The 256GB card is in fact a 256MB card. :)
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I get the same on a Dell XPS M1530 (see bug #239649) with both a 2GB and
a 256GB card in the internal reader. I have tried the cards in an
external reader and they are fine. I even eventually tried the internal
reader in Vista and it didn't have problems.
Sometimes the copy works fine, but usually
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This bug did not have a package associated with it, which
is important for ensuring that it gets looked at by the proper
developers. You can learn more about finding the right package at
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Same issue on an Thinkpad T61
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