SD cards stopped working on my machine

SD cards stopped working on my machine

[Romano Giannetti]

Hi,

I just posted a regression bug on bugzilla:

	http://bugzilla.kernel.org/show_bug.cgi?id=11267

the new kernel stopped to notice the fact that I introduce an SD card into the 
slot of the machine. It used to work perfectly in 2.6.26 (came back and tested, 
so it's not hardware).

In 2.6.26 I had on the dmesg:

[  131.145237] mmc0: new high speed SD card at address b368
[  131.145295] PM: Adding info for mmc:mmc0:b368
[  131.176370] mmcblk0: mmc0:b368 SD    2009600KiB (ro)
[  131.176370] PM: Adding info for No Bus:mmcblk0
[  131.176370]  mmcblk0: p1
[  131.176434] PM: Adding info for No Bus:mmcblk0p1
[  131.176434] PM: Adding info for No Bus:179:0

In 2.6.27-rc2 nothing happens. I have not a lot of time in my hands, so if it's 
possible at all I'd like to avoid a bisect (It's more than one hour per compile 
here...)

Thanks,
	Romano

PD this time at least it didn't eat my photos :-)))))





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Re: [Bug 11267] SD cards stopped working on my machine

[Hugh Dickins]

On Thu, 7 Aug 2008, Romano Giannetti wrote:
> I just posted a regression bug on bugzilla:
> 
> 	http://bugzilla.kernel.org/show_bug.cgi?id=11267
> 
> the new kernel stopped to notice the fact that I introduce an SD card into the
> slot of the machine. It used to work perfectly in 2.6.26 (came back and
> tested, so it's not hardware).
> 
> In 2.6.26 I had on the dmesg:
> 
> [  131.145237] mmc0: new high speed SD card at address b368
> [  131.145295] PM: Adding info for mmc:mmc0:b368
> [  131.176370] mmcblk0: mmc0:b368 SD    2009600KiB (ro)
> [  131.176370] PM: Adding info for No Bus:mmcblk0
> [  131.176370]  mmcblk0: p1
> [  131.176434] PM: Adding info for No Bus:mmcblk0p1
> [  131.176434] PM: Adding info for No Bus:179:0
> 
> In 2.6.27-rc2 nothing happens. I have not a lot of time in my hands, so if
> it's possible at all I'd like to avoid a bisect (It's more than one hour per
> compile here...)

Please try yesterday's patch from the scsi-rc-fixes tree,
commit d211f052fa58a053639bc51501cb64421157d362
which fixed SD cards over USB storage for me:

[SCSI] sd: fix USB devices incorrectly reporting DIF support

Some USB devices set the protect bit in the INQUIRY data which
currently causes the DIF code in sd to assume (incorrectly) that they
support READ_CAPACITY(16).  Fix this (only for the time being) by
making sure we only believe the protect bit in the inquiry data if the
device claims conformance to SCSI-3 or above.

Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 291d56a..80b2e93 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -6,6 +6,7 @@
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
 #include <linux/blkdev.h>
+#include <scsi/scsi.h>
 #include <asm/atomic.h>
 
 struct request_queue;
@@ -426,7 +427,7 @@ static inline int scsi_device_enclosure(struct scsi_device *sdev)
 
 static inline int scsi_device_protection(struct scsi_device *sdev)
 {
-	return sdev->inquiry[5] & (1<<0);
+	return sdev->scsi_level > SCSI_2 && sdev->inquiry[5] & (1<<0);
 }
 
 #define MODULE_ALIAS_SCSI_DEVICE(type) \

Re: SD cards stopped working on my machine

[Romano Giannetti]

Romano Giannetti wrote:
> 
> 
> the new kernel stopped to notice the fact that I introduce an SD card 
> into the slot of the machine. It used to work perfectly in 2.6.26 (came 
> back and tested, so it's not hardware).
> 

Solved by setting to Y CONFIG_MMC_SDHCI_PCI which was set to N by make oldconfig.

Romano

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Sorry for the disclaimer --- ¡I cannot stop it!


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La presente comunicación tiene carácter confidencial y es para el exclusivo uso del destinatario indicado en la misma. Si Ud. no es el destinatario indicado, le informamos que cualquier forma de distribución, reproducción o uso de esta comunicación y/o de la información contenida en la misma están estrictamente prohibidos por la ley. Si Ud. ha recibido esta comunicación por error, por favor, notifíquelo inmediatamente al remitente contestando a este mensaje y proceda a continuación a destruirlo. Gracias por su colaboración.

This communication contains confidential information. It is for the exclusive use of the intended addressee. If you are not the intended addressee, please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited by law. If you have received this communication in error, please immediately notify the sender by reply e-mail and destroy this message. Thank you for your cooperation.