** Changed in: linux-ti-omap4 (Ubuntu)
Status: Fix Committed => Fix Released
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Title:
natty slow boot on pandaboard(rev A1)
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Ming, what's the status on this? can i close it?
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Title:
natty slow boot on pandaboard(rev A1)
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** Changed in: linux-ti-omap4 (Ubuntu)
Status: Incomplete => Fix Committed
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Title:
natty slow boot on pandaboard(rev A1)
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In Oneiric, the disk geometry parameters have been changed from
255 heads, 63 sectors/track, 941 cylinders (natty and before)
to
128 heads, 32 sectors/track, 1890 cylinders(Oneiric)
so the start sector number of partitions is even number now.
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After reading the paper in the link below:
https://lwn.net/Articles/428584/
I think the slow writing to my sd card is not strange, see below:
- my card is a kingston class 4 card, not a "high speed" card
- writing to sd card is a slow action because of storage feature of sd card,
also
opt
Unfortunately, I found my pandaboard is destroyed just the next morning after
the mmc read teat.
I am not sure if it is caused by the mmc read test. But certainly, I have done
nothing using the board
after doing the mmc test and before I found it is broken.
My board will hang in several minut
Use ftrace to trace block event, and found the blow when bad read
performance[1] is observed:
mmcqd/0-57[000] 8827.689789: block_rq_issue: 179,0 W 0 () 5653017
+ 8 [mmcqd/0]
mmcqd/0-57[000] 8828.408600: block_rq_complete: 179,0 W ()
5653017 + 8 [0]
Seems the bad read
** Changed in: linux-ti-omap4 (Ubuntu)
Assignee: (unassigned) => Ming Lei (tom-leiming)
** Changed in: linux-ti-omap4 (Ubuntu)
Importance: Undecided => Medium
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When I enable lockdep today on my pandaboard, the warning below[1] has been
triggered,
so the issue is surely related with block storage or filesystem.
[1], lockdep warning
[ 1202.199310] INFO: task updatedb.mlocat:6892 blocked for more than 120
seconds.
[ 1202.207519] "echo 0 > /proc/sys/kern
The issue should be caused by 'mount' in
/usr/lib/pm-utils/power.d/journal-commit.
Login window can be shown in 60sec after running the below:
chmod -x /usr/lib/pm-utils/power.d/journal-commit
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upload bootchart
Even the chart shows that the boot time is about 60sec, but on my pandaboard I
still
have to take about 2minutes to see the login window.
** Attachment added: "tom-panda-natty-20110528-1.png"
https://bugs.edge.launchpad.net/ubuntu/+source/linux-ti-omap4/+bug/784421/+attachme
>1486 00:48:26.075713 futex(0x1baa75c, FUTEX_WAIT_PRIVATE, 1,
>{14, 999571869}
>1486 00:49:07.075534 <... futex resumed> ) = -1 ETIMEDOUT
>(Connection timed out) <40.999668>
Further ftrace on hrtimer event indicates that the hrtimer is triggered in time,
but futex( FUTEX_WAIT_PRIVATE) returned
1, strace on gdm-binary
exec strace -e futex -fttT -o /tmp/gdm.trace gdm-binary $CONFIG_FILE
2, many tests show long time delay found in futex() syscall, such as
before:
1486 00:48:26.075713 futex(0x1baa75c, FUTEX_WAIT_PRIVATE, 1, {14, 999571869}
1486 00:49:07.075534 <... futex resumed> ) = -
1, some progress
- if gdm is enabled, even '$' over ttyO2 comes very late when login from
serial tty, see detailed analysis
in next part.
- if gdm is disabled, '$' over ttyO2 comes very quickly if login from serial
tty.
- so gdm is involved in the slow boot issue
2, strace log
With
Also found there is interval of ~1.5 min from running of /etc/gdm/Init/Default
to
running of /etc/gdm/ProSession/Default.
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Title:
natty slow boo
Ricardo Salveti,
1, ehci issue
- see the detailed log of ehci failure in attachment of #2, please point
out if you think it is still not enough for you.
- The MLO in http://people.canonical.com/~rsalveti/784421/MLO still doesn't
make ehci of my pandaboard work, same with
nattay release.
- I ca
Ming Lei, can you try the following MLO and see if it works better with
your ehci problem? http://people.canonical.com/~rsalveti/784421/MLO
I noticed we were missing one patch to properly set the ehci
fref_clkout.
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On Sat, May 21, 2011 at 3:10 AM, Ming Lei <784...@bugs.launchpad.net> wrote:
> It is the creating of 512MB SWAP.swap which consumes about extra 2min. The
> boot time is decreased a lot
> once I commented the line below in /etc/fstab:
>
> /SWAP.swap none swap sw 0 0
The swap fi
On Thu, May 19, 2011 at 12:26 AM, Ming Lei <784...@bugs.launchpad.net> wrote:
> I have found that it is MLO in natty release which caused ehci on my
> pandabord not work,
> but how about the slow boot issue?
That's weird, I also saw some complains from other people but could
never reproduce local
It is the creating of 512MB SWAP.swap which consumes about extra 2min. The boot
time is decreased a lot
once I commented the line below in /etc/fstab:
/SWAP.swapnone swapsw 0 0
The swap file to be created is 512M bytes, so takes long time since the rootfs
is over mmc card
I have found that it is MLO in natty release which caused ehci on my pandabord
not work,
but how about the slow boot issue?
thanks,
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Title:
natt
Can you try different combinations of x-loader and u-boot to see what's
probably causing you this error? I believe it's probably related with
the x-loader, so try replacing only the x-loader from the original image
with your own binary and see if that works better.
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Hi Ricardo Salveti,
Yes, you are right.
There was a story about it, i don't use released u-boot and mlo because they
can't make ehci
work so i build the mlo and u-boot myself from below trees and fix my ehci
issue.
X-loader:
git://git.omapzoom.org/repo/x-loader.git
branch: omap4_de
Seems you're not using the released version for both x-loader and u-boot. You
also seems to be using your own kernel, as you can see from the kernel version
log:
[0.00] Linux version 2.6.38-1209-omap4 (tom@tom-ThinkPad-T410) (gcc
version 4.5.1 (Sourcery G++ Lite 2010.
09-50) ) #13 SMP PR
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