<br><br><div class="gmail_quote">2012/3/28 Terry Barnaby <span dir="ltr"><<a href="mailto:terry1@beam.ltd.uk">terry1@beam.ltd.uk</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 03/26/2012 09:20 PM, J. Randall Owens wrote:<br>
> On 03/26/2012 06:05 AM, Terry Barnaby wrote:<br>
>> Hi,<br>
>><br>
>> I am using the latest F16 kernel: 3.3.0-4.fc16.i686.PAE and am having<br>
>> problems with a MicroSD card connected to a USB card reader. This has<br>
>> been working fine until recently (at least in F14 on the same hardware).<br>
>><br>
>> The problem is that "umount" does not appear to be working correctly.<br>
>> I have an ext3 file system on the card. I can mount it, and I can copy<br>
>> files to it. However when I use the "umount ..." command it returns<br>
>> instantly (should sync the files to the card). The system says the card<br>
>> is unmounted (at least it is not listed with mount, df etc).<br>
>><br>
>> However if I run sync, there is a lot of disk activity to the card ...<br>
>><br>
>> Also if I try and run "mkfs" it says the device in in use ...<br>
>> If I mount a blank card it lists the files present on the previous card ...<br>
>><br>
>> This sounds like a nasty kernel bug ...<br>
>> Anyone else seen this ?<br>
><br>
> I thought I'd noticed something like this with 3.2.x kernels also; I<br>
> couldn't narrow it down more than that. In my case, it's a USB external<br>
> HDD. After unmounting, I have an old habit of running 3 syncs in one<br>
> line. And lately, I've noticed that I don't even get that disk activity<br>
> until I give it a second trio of syncs, which certainly doesn't seem right.<br>
> Let me check right now with 3.3.0-4... Odd, now I do get the activity<br>
> at about the same time as the umount, and no further activity when I<br>
> issue the syncs. Seems to be the opposite of what you've reported.<br>
><br>
Kernel 3.2.10-3.fc16.i686.PAE also appears to be broken.<br>
This seems really very nasty, does it apply to other disks or just to USB<br>
ones ...<br>
I have added Bugzilla bug: 806909 for this.<br>
<br>
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=806909" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=806909</a><br>
<br>
Cheers<br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
Terry<br>
--<br>
devel mailing list<br>
<a href="mailto:devel@lists.fedoraproject.org">devel@lists.fedoraproject.org</a><br>
<a href="https://admin.fedoraproject.org/mailman/listinfo/devel" target="_blank">https://admin.fedoraproject.org/mailman/listinfo/devel</a></font></span></blockquote></div>I just commented your bugreport with mine that submitted some months ago<br>