Messages in this thread | | | Date | Wed, 9 Apr 2014 21:52:43 -0600 | From | Jens Axboe <> | Subject | Re: [BUG] kernel BUG at /.../block/cfq-iosched.c:3145! |
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On 2014-04-09 21:35, Benjamin Herrenschmidt wrote: > On Wed, 2014-04-09 at 20:25 -0600, Jens Axboe wrote: >> On 2014-04-09 19:36, Benjamin Herrenschmidt wrote: >>> On Wed, 2014-04-09 at 19:31 -0600, Jens Axboe wrote: >>>> OK, I think we're seeing different symptoms of the same bug. Stay >>>> tuned, will have something for you to test shortly, I hope. >>> >>> Ah thanks. I'll defer the bisection then (it's painful on that machine >>> for various reasons....) >> >> Can you try with these two patches applied? > > Booted to login prompt once ... and twice. Much better ! :-)
Excellent! I was hoping it was the same bug :-) I'll amend the commit and add your tested-by.
> Not sure if it's related, but in the "good" boots (with the patch), > I see a truckload of: > > systemd-udevd[3264]: starting version 204 > sr 2:6:0:0: [sr0] > Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > sr 2:6:0:0: [sr0] > Sense Key : Illegal Request [current] > sr 2:6:0:0: [sr0] > Add. Sense: Logical block address out of range > sr 2:6:0:0: [sr0] CDB: > Read(10): 28 00 00 00 00 00 00 00 01 00 > end_request: critical target error, dev sr0, sector 0 > Buffer I/O error on device sr0, logical block 0 > [ OK ] Started udev Kernel Device Manager. > sr 2:6:0:0: [sr0] > Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE > sr 2:6:0:0: [sr0] > Sense Key : Illegal Request [current] > sr 2:6:0:0: [sr0] > Add. Sense: Logical block address out of range > sr 2:6:0:0: [sr0] CDB: > > etc... > > I might have a crap coaster in that drive. It doesn't prevent > the machine from working otherwise, so far...
That does look like just a dud cdrom in the tray.
-- Jens Axboe
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