I have discovered that when I enable a swap file on my Zaurus, 99% of the time that will cause the usb storage functionality to get hosed. I have posted before about the USB storage getting all messed up and not working until the Zaurus is rebooted and others have confirmed that they have the problem as well. I have tested it. I have gone days without enabling any swap at all. The USB storage works like a charm the whole time. Then, I enable a swap, use xqt a little, then disable it when I'm done. Sure enough, next time I connect my Zaurus to my PC it doesn't work.
Strange isn't it. I wonder what it could be? Do any of you others have this issue as I describe it?
Full Version: Usb Storage Dies As A Result Of Swap
OESF Forums > Distros, Development, and Model Specific Forums > Model Specific Forums > C1000/3x00 General discussions
I have a 128mb swapfile enabled all the time, using the memory applet in Cacko lite.
I also use USB storage to transfer files from my PC to my C3100, with no problems.
I have it set to Internal HDD
I have a USB cord on my desk at all times because I use it so much to place files from my PC to my C3100's /hdd3
I never disable my swapfile in Cacko.
If I need to reboot, the first thing I do after Qtopia loads, is enable my 128mb swapfile.
It's located here:
/hdd3/Documents/.swapfile
I also use USB storage to transfer files from my PC to my C3100, with no problems.
I have it set to Internal HDD
I have a USB cord on my desk at all times because I use it so much to place files from my PC to my C3100's /hdd3
I never disable my swapfile in Cacko.
If I need to reboot, the first thing I do after Qtopia loads, is enable my 128mb swapfile.
It's located here:
/hdd3/Documents/.swapfile
Ack! Sorry, I meant "swap file". I'll fix that in my first post.
Hmm, your information helps out. Thanks.
Hmm, your information helps out. Thanks.
Edited my last post also..
128mb swap partition here, no problems...
QUOTE(xamindar @ Jun 23 2006, 01:01 PM)
Ack! Sorry, I meant "swap file". I'll fix that in my first post.
Hmm, your information helps out. Thanks.
Hmm, your information helps out. Thanks.
that's expected. when usb storage is enabled, /hdd3 is unmounted and then remounted. obviously, if a mounted swapfile sits on /hdd3, its gonna cause troubles.
fix the usbd script to swapoff before remounting hdd3 and then renable swap afterwards.
QUOTE(Meanie @ Jun 22 2006, 07:18 PM)
QUOTE(xamindar @ Jun 23 2006, 01:01 PM)
Ack! Sorry, I meant "swap file". I'll fix that in my first post.
Hmm, your information helps out. Thanks.
Hmm, your information helps out. Thanks.
that's expected. when usb storage is enabled, /hdd3 is unmounted and then remounted. obviously, if a mounted swapfile sits on /hdd3, its gonna cause troubles.
fix the usbd script to swapoff before remounting hdd3 and then renable swap afterwards.
I even tested it with a swapfile on SD. It still did it. Could my zaurus have a hardware problem?
Meanie suggests that the swapfile is unmounted along with /hdd3
When /hdd3 is remounted, is the swapfile remounted also?
I ask this because I've always just left my swapfile enabled on /hdd3 and, haven't had any problems suggested by xamindar, or Meanie.
When I plug my C3100 into my windows PC, via USB it just connects.
I do have to wait about 10 seconds, (or until after the hard drive light on my Zaurus stops), to open my zaurus in the storage mode on my PC.
Note: after a fresh reboot, when I connect my Z to windows as above, a small dialog pops up on my Z and asks:
"Please make sure to exit all applications and save data before executing ZaurusDrive."
"Are you sure you want to contunue?"
[Yes] [No]
[] Do not display this message again
If I place an 'X' in the checkbox, this dialog doesn't pop up again unless I reboot.
When this dialog pops up, I get 3 sounds on my windows PC.
1. ding-dong (usb icon on my tray on my PC)
2. dong-ding (usb icon on my tray on my PC disappears)( this is when above dialog appears on my Z)
3. ding-dong (usb icon on my tray on my PC)
After I have placed an 'X' in the above dialog, my PC only makes one sound and connects.
I do have to wait about 10 seconds as mentioned above to access the drive.
When /hdd3 is remounted, is the swapfile remounted also?
I ask this because I've always just left my swapfile enabled on /hdd3 and, haven't had any problems suggested by xamindar, or Meanie.
When I plug my C3100 into my windows PC, via USB it just connects.
I do have to wait about 10 seconds, (or until after the hard drive light on my Zaurus stops), to open my zaurus in the storage mode on my PC.
Note: after a fresh reboot, when I connect my Z to windows as above, a small dialog pops up on my Z and asks:
"Please make sure to exit all applications and save data before executing ZaurusDrive."
"Are you sure you want to contunue?"
[Yes] [No]
[] Do not display this message again
If I place an 'X' in the checkbox, this dialog doesn't pop up again unless I reboot.
When this dialog pops up, I get 3 sounds on my windows PC.
1. ding-dong (usb icon on my tray on my PC)
2. dong-ding (usb icon on my tray on my PC disappears)( this is when above dialog appears on my Z)
3. ding-dong (usb icon on my tray on my PC)
After I have placed an 'X' in the above dialog, my PC only makes one sound and connects.
I do have to wait about 10 seconds as mentioned above to access the drive.
UPDATE: I have been running my zaurus with a swap file on the hard drive for the past 6 days straight *WITHOUT RUNNING PDAXQTROM AT ALL* to test other possible reasons.
You see, before I started this thread I would enable the swap file ONLY when I ran xqt. Then I would disable it as soon as I closed xqt to minimize the possability of the USB drive getting messed up. I assumed it was the swap's fault.
So now again, I am going to make an assumption and conclude that Xqt is at fault, not the swap file. Meanie or anyone else, can you offer any ideas about this? I am charging my Zaurus right now and will next attempt to run xqt for a while and then close it and see if my Zaurus is still able to connect as a USB drive or not. Then I will know if this theary is correct.
If this is the case, how can we prevent of fix it?
You see, before I started this thread I would enable the swap file ONLY when I ran xqt. Then I would disable it as soon as I closed xqt to minimize the possability of the USB drive getting messed up. I assumed it was the swap's fault.
So now again, I am going to make an assumption and conclude that Xqt is at fault, not the swap file. Meanie or anyone else, can you offer any ideas about this? I am charging my Zaurus right now and will next attempt to run xqt for a while and then close it and see if my Zaurus is still able to connect as a USB drive or not. Then I will know if this theary is correct.
If this is the case, how can we prevent of fix it?
Well, today I decided to try running pdaxqtrom a little and then closing it and plugging my zaurus into the usb port.
After using pdaxqtrom, my zaurus seemed to still work when plugged into my windows machine. But I noticed something is now wrong as explorer will freeze when trying to access my zaurus half the time. I was able to access it and copy files to/from it but there would be these random freezes that lasted a few minutes. If I unplugged it then the freeze that windows was experiencing would imediately be gone.
I then tried plugging it into my Linux machine at home and nothing, it wont mount. Dmesg gives the following error:
Also of note, my Zaurus reports its self as a c1000. Something it just recently started doing, strange. But my usb problem precedes this problem so I doubt they are related.
So it is indeed the running of pdaxqtrom that is somehow screwing up the usb drive functionality until I reboot. Is there anything else I can provide to help diagnose this problem? I really like being able to use pdaxqtrom but this is a showstopper for me.
After using pdaxqtrom, my zaurus seemed to still work when plugged into my windows machine. But I noticed something is now wrong as explorer will freeze when trying to access my zaurus half the time. I was able to access it and copy files to/from it but there would be these random freezes that lasted a few minutes. If I unplugged it then the freeze that windows was experiencing would imediately be gone.
I then tried plugging it into my Linux machine at home and nothing, it wont mount. Dmesg gives the following error:
CODE
[31216.541677] usb 1-3.1: new full speed USB device using ehci_hcd and address 6
[31221.613090] scsi1 : SCSI emulation for USB Mass Storage devices
[31221.613176] usb-storage: device found at 6
[31221.613179] usb-storage: waiting for device to settle before scanning
[31226.599620] Vendor: Sharp Model: SL-C1000 Rev: 1.00
[31226.599643] Type: Direct-Access ANSI SCSI revision: 00
[31226.603008] SCSI device sda: 7959168 512-byte hdwr sectors (4075 MB)
[31226.604000] sda: Write Protect is off
[31226.604005] sda: Mode Sense: 43 00 00 00
[31226.604007] sda: assuming drive cache: write through
[31226.607602] SCSI device sda: 7959168 512-byte hdwr sectors (4075 MB)
[31226.609009] sda: Write Protect is off
[31226.609014] sda: Mode Sense: 43 00 00 00
[31226.609017] sda: assuming drive cache: write through
[31226.609022] sda:
[31226.614666] sd 1:0:0:0: Attached scsi removable disk sda
[31226.616056] usb-storage: device scan complete
[31257.346390] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31287.399763] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31317.454005] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31347.507629] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31377.561501] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31377.652328] sd 1:0:0:0: SCSI error: return code = 0x50000
[31377.652335] end_request: I/O error, dev sda, sector 64
[31377.652341] Buffer I/O error on device sda, logical block 8
[31221.613090] scsi1 : SCSI emulation for USB Mass Storage devices
[31221.613176] usb-storage: device found at 6
[31221.613179] usb-storage: waiting for device to settle before scanning
[31226.599620] Vendor: Sharp Model: SL-C1000 Rev: 1.00
[31226.599643] Type: Direct-Access ANSI SCSI revision: 00
[31226.603008] SCSI device sda: 7959168 512-byte hdwr sectors (4075 MB)
[31226.604000] sda: Write Protect is off
[31226.604005] sda: Mode Sense: 43 00 00 00
[31226.604007] sda: assuming drive cache: write through
[31226.607602] SCSI device sda: 7959168 512-byte hdwr sectors (4075 MB)
[31226.609009] sda: Write Protect is off
[31226.609014] sda: Mode Sense: 43 00 00 00
[31226.609017] sda: assuming drive cache: write through
[31226.609022] sda:
[31226.614666] sd 1:0:0:0: Attached scsi removable disk sda
[31226.616056] usb-storage: device scan complete
[31257.346390] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31287.399763] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31317.454005] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31347.507629] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31377.561501] usb 1-3.1: reset full speed USB device using ehci_hcd and address 6
[31377.652328] sd 1:0:0:0: SCSI error: return code = 0x50000
[31377.652335] end_request: I/O error, dev sda, sector 64
[31377.652341] Buffer I/O error on device sda, logical block 8
Also of note, my Zaurus reports its self as a c1000. Something it just recently started doing, strange. But my usb problem precedes this problem so I doubt they are related.
So it is indeed the running of pdaxqtrom that is somehow screwing up the usb drive functionality until I reboot. Is there anything else I can provide to help diagnose this problem? I really like being able to use pdaxqtrom but this is a showstopper for me.
So is no one else having this problem? Dang, why do I have these problems when I install things like they are supposed to be and I don't do any odd things to my zaurus? 
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