[Click] oops on click-uninstall

[Beyers Cronje]

Hi Eddie,

Sorry for only giving feedback on this issue now, been moving house over
800km from where I used to stay. Now I have a nice view from my office to
the beatiful South African ocean :)

I got it working in the end. I started with a fresh Click CVS version, and
fresh 2.6.16.13 kernel and disable the following kernel Debug options that
was enabled before:

Debug Memory Allocations
Debug VM
Compile the kernel with frame pointers

After that everything worked perfectly as before. I'm not sure if it was the
fresh click installation or disabling the above debug options that solved
the problem, but I'm fairly certain click wasnt using an older proclikefs
when I was strugling as I remember I manually delete proclikefs together
with a make clean on click at some stage during the struggles. Once we've
settled into the new home I will verify if enabling the above debug options
introduces the problem.

Cheers

Beyers


On 2/21/07, Eddie Kohler <kohler at cs.ucla.edu> wrote:
>
> Hi Beyers,
>
> Are you still getting this error?  I have not seen anything like it, at
> least on my laptop, and others haven't seen problems either.  I wonder
> if there could possibly be something like using an older proclikefs with
> a newer kernel module.  Almost certainly not but....
>
> Eddie
>
>
> Beyers Cronje wrote:
> > Hi guys,
> >
> > This is a start on an attempt to narrow down crashes on
> > click-uninstall with proclikefs. It seems I can reproduce this crash
> > now. Unfortunately I dont have a console connection to the server so
> > I'm left with what's reported in syslog. The one time I did have
> > console access it seemed the offending function was -
> > proclikefs_put_super
> >
> > Currently running 2.6.19.2, last night's Click CVS version, e1000-7.x
> > polling driver. Unfortunately the click 2.6.19.2 patch does not patch
> > files enabled by CONFIG_LOCKDEP, I will correct this and enable full
> > spinlock debugging.
> >
> > As a start this is what was logged in syslog:
> >
> > Feb 16 10:38:46 crovanto2850 kernel: Slab corruption: start=edc229d0,
> len=64
> > Feb 16 10:38:46 crovanto2850 kernel: Redzone: 0x5a2cf071/0x5a2cf071.
> > Feb 16 10:38:46 crovanto2850 kernel: Last user:
> > [<fae85a1e>](_ZdaPv+0x6a/0x9a [click])
> > Feb 16 10:38:46 crovanto2850 kernel: 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 64 81 7f f4
> > Feb 16 10:38:46 crovanto2850 kernel: Prev obj: start=edc22984, len=64
> > Feb 16 10:38:46 crovanto2850 kernel: Redzone: 0x170fc2a5/0x170fc2a5.
> > Feb 16 10:38:46 crovanto2850 kernel: Last user:
> > [<fae85ec1>](_Znwj+0x21/0x70 [click])
> > Feb 16 10:38:46 crovanto2850 kernel: 000: 7f 3f ff ff 58 58 58 69 10
> > 00 00 00 d4 e5 ea ed
> > Feb 16 10:38:46 crovanto2850 kernel: 010: 30 fc ed ee 01 00 00 00 20
> > 00 00 00 14 00 00 00
> > Feb 16 10:38:46 crovanto2850 kernel: Next obj: start=edc22a1c, len=64
> > Feb 16 10:38:46 crovanto2850 kernel: Redzone: 0x5a2cf071/0x5a2cf071.
> > Feb 16 10:38:46 crovanto2850 kernel: Last user:
> > [<fae85b3c>](click_lfree+0x22/0x24 [click])
> > Feb 16 10:38:46 crovanto2850 kernel: 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:38:46 crovanto2850 kernel: 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:40:40 crovanto2850 kernel: e1000_poll_off
> > Feb 16 10:40:40 crovanto2850 kernel: Slab corruption: start=edc229d0,
> len=64
> > Feb 16 10:40:40 crovanto2850 kernel: Redzone: 0x5a2cf071/0x5a2cf071.
> > Feb 16 10:40:40 crovanto2850 kernel: Last user:
> > [<fae858de>](_ZdlPv+0x6a/0x9a [click])
> > Feb 16 10:40:40 crovanto2850 kernel: 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 90 db 8d f0
> > Feb 16 10:40:40 crovanto2850 kernel: Prev obj: start=edc22984, len=64
> > Feb 16 10:40:40 crovanto2850 kernel: Redzone: 0x5a2cf071/0x5a2cf071.
> > Feb 16 10:40:40 crovanto2850 kernel: Last user:
> > [<c01a1981>](free_rb_tree_fname+0x41/0x82)
> > Feb 16 10:40:40 crovanto2850 kernel: 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:40:40 crovanto2850 kernel: 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:40:40 crovanto2850 kernel: Next obj: start=edc22a1c, len=64
> > Feb 16 10:40:40 crovanto2850 kernel: Redzone: 0x5a2cf071/0x5a2cf071.
> > Feb 16 10:40:40 crovanto2850 kernel: Last user:
> > [<fae858de>](_ZdlPv+0x6a/0x9a [click])
> > Feb 16 10:40:40 crovanto2850 kernel: 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:40:40 crovanto2850 kernel: 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b
> > 6b 6b 6b 6b 6b 6b 6b
> > Feb 16 10:40:40 crovanto2850 kernel: device eth2 left promiscuous mode
> > Feb 16 10:40:40 crovanto2850 kernel: click: stopping router thread pid
> 14206
> > Feb 16 10:40:40 crovanto2850 kernel: poll fb05c3a0: 680928/1952766090
> > freed, 661510/1857091501 allocated
> > Feb 16 10:40:40 crovanto2850 kernel: click module exiting
> > Feb 16 10:40:41 crovanto2850 kernel: list_del corruption. prev->next
> > should be f5dac820, but was 6b6b6b6b
> >
> > Cheers
> >
> > Beyers
> > _______________________________________________
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> > click at amsterdam.lcs.mit.edu
> > https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>