IRC log for #openslug on 20080608

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14:58.37Ge1Hey all - anyone know why my NSLU gives off so many bus errors? It only seems to be when I've given it something relatively heavy weight to do (like moving large files), but its quite a pain if the tasks won't finish! Is it likely to be related to the bus error described here http://www.nslu2-linux.org/wiki/FAQ/RepairingDiskErrors? That's the only related bus error I can find, although its about reformatting, not simply moving files
15:02.26ShadowJKanything in dmesg?
15:06.37Ge1"<6>kjournald starting.  Commit interval 5 seconds
15:06.39Ge1<4>EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
15:06.39Ge1<6>EXT3 FS on sdb1, internal journal
15:06.39Ge1<6>EXT3-fs: recovery complete.
15:06.39Ge1<6>EXT3-fs: mounted filesystem with ordered data mode."
15:06.39Ge1that a couple of times, but that might just be because I have to reset it quite brutally after the bus errors
15:06.46Ge1(the power button stops responding)
15:08.00ShadowJKah i meant dmesg right after bus errors, without reboots in between
15:08.07Ge1ah
15:08.16Ge1the bus error appears when I'm logged in via SSH
15:08.20Ge1and kills all commands
15:08.25Ge1no cd, no ls, no df ^^
15:08.53ShadowJKOh.. hm
15:08.57Ge1I get the response "-sh: ls not recognised", or something to that effect
15:09.17ShadowJKI do know, that if the harddrive that the OS is installed on goes away or stops working, you'd get alot of bus errors and stuff dying randomly...
15:09.51Ge1it couldn't be due to having my swap on the device still could it? I used the turnup memstick option initially?
15:09.58ShadowJKSomething similar happened to me when I was running unslung, I ended up using netconsole to capture the kernel messages on another computer
15:10.10Ge1it shouldn't go away if its on a flash should it?
15:10.31ShadowJKif it's developing read errors it's much the same
15:11.04ShadowJKIn my case I got alot of read errors through netconsole, then programs kinda died...
15:11.19ShadowJKEventually I figured out that the powersupply was dying and didn't give enough amps anymore
15:11.34Ge1hmm
15:11.40Ge1my slug had bad trouble earlier this week
15:12.13Ge1it wasn't picking up USB devices in ports at all, not if they were inserted before boot, or hot plugged, and so I went and get a new PSU
15:12.38Ge1but as that didn't help, I reset sysconf, which worked a treat, and went back to the old PSU
15:13.00Ge1suppose it might be worth trying the newer PSU I got, see if I can crash it ^^
15:13.05ShadowJKyes
15:13.20Ge1ok, I'll try and see if I can get it to go again :)
15:13.34Ge1luckily its fairly reproducible :P
15:19.07Ge1nah, still happening :S
15:19.36Ge1"-sh: ls: not found" is the kind of error I get when I try to do anything
15:24.31Sinclair73deShadowJK, my  powersupply died last week...
15:25.15Sinclair73deShadowJK, i have measured without the slug only 3V DC and about 1V AC!!! on the connector
15:25.51Sinclair73dethe slug itself runs with this powersupply, but every usb device makes trouble
15:35.05Ge1ah that's funny... I can CD to certain directories
15:35.20Ge1(after the bus error msg)
15:36.01Ge1ah
15:36.07Ge1the only directories I can
15:36.19Ge1can't* change to are on the flash drive that I run the OS off
15:39.57Ge1I can access all the other USB devices, all the directories that are still on the internal memory, and /dev/.static/dev, even though thats on SDA1 (the flash drive), SDA3 (which holds /home)...just not / (on SDA1 also oddly)...is there something wrong with my flashdrive perhaps?
15:56.53ShadowJKperhaps :/
15:57.14ShadowJKthis might crash/hang: cat /dev/sda > /dev/null
15:57.26ShadowJKdoes that say IO error or does it make flash drive blink?
16:03.12Ge12 ticks, I'll go and check ^^
16:05.03Ge1oh
16:05.19Ge1drive blinks for ~5-10 secs
16:05.22Ge1then bus error
16:06.58ShadowJKYou wouldn't happen to have another linux/bsd/osx machine? :-)
16:07.32Ge1on ubuntu atm :)
16:09.22ShadowJKOh, I'd try boot without any storage attached, it'd boot slugos from internal flash, then I'd plug in the flash drive, and try do the cat /dev/sda > /dev/null thing...
16:09.33ShadowJKhopefully, after error happens, if it happens, you could do dmesg to get some extra clues
16:09.57Ge1on the NSLU?
16:10.01ShadowJKya
16:10.24Ge1ok, I'll give that a shot!
16:10.26ShadowJKIt will boot to the environment you had before you ran 'turnup', but that includes ssh and stuff, if I remember right
16:11.12ShadowJKSinclair73de, my powersupply measured 5 volts unloaded, but when connected to slug the voltage dropped to 4.3, iirc.. and when I attached flash drive and stuff, it dropped even further
16:18.22Ge1(I think it's finished, as the status LED and the LED on the flashdrive have stopped blinking, but the command hasn't returned anything, and the SSH terminal looks like it's waiting for a reply of some sort..?)
16:19.10Ge1(ah, but a 2nd SSH in allows me to look at dmesg, which doesn't look v.happy!
16:19.19ShadowJKWhat does it say? :)
16:19.53ShadowJKEven on a healthy system it'd take very long for that command to complete, it tries to read your entire flash drive
16:20.07Ge1yeah, it took its time, but it seems to have finished tbh
16:20.10Ge1<3>ehci_hcd 0000:00:01.2: fatal error
16:20.10Ge1<3>ehci_hcd 0000:00:01.2: HC died; cleaning up
16:20.10Ge1<6>usb 2-1: new full speed USB device using ohci_hcd and address 2
16:20.10Ge1<3>usb 2-1: device descriptor read/64, error -110
16:20.11Ge1<6>usb 2-1: new full speed USB device using ohci_hcd and address 3
16:20.13Ge1<3>usb 2-1: device descriptor read/64, error -110
16:20.15Ge1<3>usb 2-1: device descriptor read/64, error -110
16:20.17Ge1<6>usb 2-1: new full speed USB device using ohci_hcd and address 4
16:20.19Ge1<3>usb 2-1: device not accepting address 4, error -110
16:20.21Ge1<6>usb 2-1: new full speed USB device using ohci_hcd and address 5
16:20.23Ge1<3>usb 2-1: device not accepting address 5, error -110
16:20.25Ge1<6>usb 1-1: USB disconnect, address 2
16:20.45ShadowJKWhat happens before the ehci fatal error? anything?
16:21.38mwestererror -110: Connection refused.
16:22.02mwesterThe usb device (or perhaps the driver) failed.
16:22.24Ge1(heres the rest of the dump....all looks normal afaik)
16:22.25Ge1<6>usb 1-1: new high speed USB device using ehci_hcd and address 2
16:22.25Ge1<6>usb 1-1: configuration #1 chosen from 1 choice
16:22.25Ge1<6>scsi0 : SCSI emulation for USB Mass Storage devices
16:22.25Ge1<7>usb-storage: device found at 2
16:22.25Ge1<7>usb-storage: waiting for device to settle before scanning
16:22.27Ge1<5>scsi 0:0:0:0: Direct-Access     BUFFALO  USB Flash Disk   4000 PQ: 0 ANSI: 0 CCS
16:22.29Ge1<5>SCSI device sda: 7831552 512-byte hdwr sectors (4010 MB)
16:22.31Ge1<5>sda: Write Protect is off
16:22.33Ge1<7>sda: Mode Sense: 43 00 00 00
16:22.35Ge1<3>sda: assuming drive cache: write through
16:22.37Ge1<5>SCSI device sda: 7831552 512-byte hdwr sectors (4010 MB)
16:22.38mwesterDepending on the device, it's possible that it's mis-formatted, and it was caused by an attempt to read past the end of the media.
16:22.39Ge1<5>sda: Write Protect is off
16:22.41Ge1<7>sda: Mode Sense: 43 00 00 00
16:22.42mwester!!! pastebin!
16:22.43Ge1<3>sda: assuming drive cache: write through
16:22.45Ge1<6> sda: sda1 sda2 sda3
16:22.47Ge1<5>sd 0:0:0:0: Attached scsi removable disk sda
16:22.49Ge1<7>usb-storage: device scan complete
16:22.50mwester*sigh*
16:22.51Ge1<6>kjournald starting.  Commit interval 5 seconds
16:22.53Ge1<4>EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
16:22.55Ge1<6>EXT3 FS on sda3, internal journal
16:22.55ShadowJKYes, pastebin is good..
16:22.57Ge1<6>EXT3-fs: recovery complete.
16:22.59Ge1<6>EXT3-fs: mounted filesystem with ordered data mode.
16:23.01Ge1<6>kjournald starting.  Commit interval 5 seconds
16:23.03Ge1<4>EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
16:23.05Ge1<6>EXT3 FS on sda1, internal journal
16:23.07Ge1<6>EXT3-fs: recovery complete.
16:23.09Ge1<6>EXT3-fs: mounted filesystem with ordered data mode.
16:23.11Ge1pastebin? sorry!
16:23.13mwestergoes back to work.
16:23.32Ge1ok
16:23.37ShadowJKhttp://pastebin.com/
16:23.42Ge1so its trying to address sections that physically don't exist?
16:23.48ShadowJKso you don't flood chat
16:24.13Ge1hah, excellent - that's going to my bookmarks :P
16:26.20ShadowJKI think what I'd try next is the flash with ubuntu (it might not be /dev/sda there)
16:27.28ShadowJKand it might get automounted and stuff under ubuntu...
16:27.54Ge1yeah, I'll umount it
16:28.18Ge1is there a way to image it first, so that I don't loose my OS? :P
16:29.15Ge1act, nvm, I'll just copy the content off and put it back on later
16:30.20ShadowJKah, cat /dev/device > image
16:30.21ShadowJKdoes that
16:30.43ShadowJKwhere device is the device it appears as under ubuntu..
16:30.52Ge1okey, thanks :)
16:32.54Ge1so, once that's done I just want to wipe the partition table and recreate them again with fdisk?
16:33.59Ge1(i followed http://www.nslu2-linux.org/wiki/OpenSlug/InitialisingDisks last time, so assuming that wasn't a terrible idea I guess I'll do that again? ^^)
16:36.24ShadowJKthe imaging copies partition tables too...
16:36.37ShadowJKI guess what's mostly interesting is whether ubuntu can read it
16:36.52Ge1mm
16:37.00Ge1oddly, ubuntu never shows SDA2
16:37.08Ge1but then I guess that's because its formatted linux-swap?
16:39.33ShadowJKif you have a SATA harddisk, it would probably be /dev/sda, btw..
16:40.49Ge1its SDC because I run Ubuntu off a 250gb flashdrive
16:41.02Ge1so, how should I format it instead?
16:41.51ShadowJKdid ubuntu read from it?
16:42.32Ge1yep, perfectly
16:42.43Ge1it imaged the drive fine too
16:43.13Ge1the dmesg in ubuntu still gives me warnings about the EXT3 FS though
16:43.40ShadowJKhow big is the image file?
16:43.56Ge1appears to be the full 4gb
16:43.59Ge1(or 3.7 gb :P)
16:45.34ShadowJKright
16:45.55ShadowJKI don't really have any idea what's wrong with it then :)
16:46.02Ge1hehe ok
16:46.05ShadowJKor how to reformat while keeping data
16:46.15Ge1well I don't need to keep the data really
16:46.28Ge1I'll just copy off whats important, and copy it back after formatting
16:46.50Ge1hell, that's part of the reason I chose the pendrives, you can clone them and bin them when they fail ;P
16:47.05Ge1I'll try on a different device, see if thats more stable :)
16:47.23Ge1the
16:48.22Ge1the "maximal mount count reached" messages aren't fatal then?
16:52.08ShadowJKno they just want you to run fsck.ext3 on the partitions
16:52.15ShadowJK(you can't do this if they're mounted)
17:01.18Ge1ok
17:01.20Ge1we'll I
17:01.34Ge1we'll I'll try making a new disk for it to boot off, and see how that goes
17:01.39Ge1thanks for your help :)
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