Lev Olshvang | 1 Dec 08:57 2009
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Kernel Oopsed, but where ?

Hi list,

I am trying to figure out Oops reason, but I do not understand where it 
happens

The system is ARM, linux kernel 2.6.31, No loadable modules

I have 3 questions to following dump :

1. - PID 1 must be an init process, why it calls himself  a swapper ?
      (Perhaps it is a kernel thread kswapd)

2. - who is trying to load the failed module - kernel or userspace  (
     I see that module failed initialization and oopsed in cleanup)
      The console shows that kernel made most initializations  before oops
3. - why no printk from this module is not shown ( I added dozen printks 
to  module init)

Here is console messages
CPU: Testing write buffer coherency: ok

Serial: AMBA PL011 UART driver
dev:f1: ttyAMA0 at MMIO 0xc6000000 (irq = 0) is a AMBA/PL011
console [ttyAMA0] enabled
bio: create slab <bio-0> at 0
MMC card not detected
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 3, 40960 bytes)
(Continue reading)

Aviv Greenberg | 1 Dec 15:18 2009
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Re: Kernel Oopsed, but where ?

it seems that something failed while a module (lpg610) was
initializing, and cleanup was called. At some point during cleanup, an
access to invalid memory was attempted, cusing the oops. what is
lpg610, i searched using lxr got no results. Is this a standard
module?

On Tue, Dec 1, 2009 at 09:57, Lev Olshvang <lolshva@...> wrote:
> Hi list,
>
> I am trying to figure out Oops reason, but I do not understand where it
> happens
>
>
> The system is ARM, linux kernel 2.6.31, No loadable modules
>
> I have 3 questions to following dump :
>
> 1. - PID 1 must be an init process, why it calls himself  a swapper ?
>     (Perhaps it is a kernel thread kswapd)
>
> 2. - who is trying to load the failed module - kernel or userspace  (
>    I see that module failed initialization and oopsed in cleanup)
>     The console shows that kernel made most initializations  before oops
> 3. - why no printk from this module is not shown ( I added dozen printks to
>  module init)
>
>
>
> Here is console messages
> CPU: Testing write buffer coherency: ok
(Continue reading)

Michael Ben-Nes | 1 Dec 15:56 2009
Picon

Re: 802.11N

If you in the power user business, dont take Edimax. It lack of ssh ( for example ).

--------------------------------------------------
Michael Ben-Nes - Internet Consultant and Director.
http://www.epoch.co.il - weaving the Net.
Cellular: 054-4848113
--------------------------------------------------


On Sat, Nov 21, 2009 at 5:36 PM, geoffrey mendelson <geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
Can anyone recommend a reliable 802.11N package? (router, USB and PCI clients). Must be availble in Israel. NATIVE Linux and Windows support a must, MacOS a plus.

Thanks in advance,

Geoff.
--
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Jerusalem Israel geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org






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Michael Ben-Nes | 1 Dec 16:05 2009
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Re: Modifying Javascript on-the-fly in Firefox

Maybe Greasemonkey?

--------------------------------------------------
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http://www.epoch.co.il - weaving the Net.
Cellular: 054-4848113
--------------------------------------------------


On Tue, Nov 24, 2009 at 9:08 AM, Baruch Siach <baruch <at> tkos.co.il> wrote:
Hi Dave, Shlomi,

On Mon, Nov 23, 2009 at 11:13:02AM +0200, Shlomi Fish wrote:
> On Monday 23 Nov 2009 10:42:21 Dave Stav wrote:
> > I needed a similar thing about a year ago. I used a perl tcp proxy.
>
> I published this Perl HTTP proxy for fixing the old yjobs on Firefox:
>
> http://www.shlomifish.org/open-source/projects/yjobs-on-mozilla/
>
> > Also, maybe Firebug can assist you.

Thanks for your help. I was hoping to avoid this convoluted HTTP proxy
solution, but I have no such luck.

Thanks anyway.

baruch

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Hetz Ben Hamo | 1 Dec 16:06 2009
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Re: 802.11N

What do you mean "lack of ssh"? ssh to the router? Bezeq router doesn't have SSH either and frankly I don't understand why do you need ssh to the router (if I understood you correctly).

Hetz

2009/12/1 Michael Ben-Nes <michael <at> epoch.co.il>
If you in the power user business, dont take Edimax. It lack of ssh ( for example ).

--------------------------------------------------
Michael Ben-Nes - Internet Consultant and Director.
http://www.epoch.co.il - weaving the Net.
Cellular: 054-4848113
--------------------------------------------------



On Sat, Nov 21, 2009 at 5:36 PM, geoffrey mendelson <geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
Can anyone recommend a reliable 802.11N package? (router, USB and PCI clients). Must be availble in Israel. NATIVE Linux and Windows support a must, MacOS a plus.

Thanks in advance,

Geoff.
--
geoffrey mendelson N3OWJ/4X1GM
Jerusalem Israel geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org






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Ilya A. Volynets-Evenbakh | 1 Dec 17:12 2009

Re: Kernel Oopsed, but where ?

Lev Olshvang wrote:
> Hi list,
>
> I am trying to figure out Oops reason, but I do not understand where
> it happens
>
>
> The system is ARM, linux kernel 2.6.31, No loadable modules
>
> I have 3 questions to following dump :
>
> 1. - PID 1 must be an init process, why it calls himself  a swapper ?
>      (Perhaps it is a kernel thread kswapd)
It is "process swapper", not process "swapper" :)
An address was accessed, swapper attempted to see if there is a page to
be loaded
for this access, and then reported an invalid page fault.
>
> 2. - who is trying to load the failed module - kernel or userspace  (
>     I see that module failed initialization and oopsed in cleanup)
>      The console shows that kernel made most initializations  before oops
Not sure, but looks like kernel is responding to detection of some device.
Can you give more details on your lpg610 module?
> 3. - why no printk from this module is not shown ( I added dozen
> printks to  module init)
Something looks rather messed up, since your init function calls a
cleanup function.
Could it be some sort of stack corruption?
>
>
>
> Here is console messages
> CPU: Testing write buffer coherency: ok
>
> Serial: AMBA PL011 UART driver
> dev:f1: ttyAMA0 at MMIO 0xc6000000 (irq = 0) is a AMBA/PL011
> console [ttyAMA0] enabled
> bio: create slab <bio-0> at 0
> MMC card not detected
> NET: Registered protocol family 2
> IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> TCP established hash table entries: 1024 (order: 1, 8192 bytes)
> TCP bind hash table entries: 1024 (order: 3, 40960 bytes)
> TCP: Hash tables configured (established 1024 bind 1024)
> TCP reno registered
> NET: Registered protocol family 1
> Unable to handle kernel paging request at virtual address 36677670
> pgd = c0004000
> [36677670] *pgd=00000000
> Internal error: Oops: 0 [#1]
> CPU: 0    Not tainted  (2.6.31 #8)
> PC is at 0x36677670
> LR is at device_get_nodename+0x70/0xdc
> pc : [<36677670>]    lr : [<c01540e4>]    psr: 20000013
> sp : c1c33e30  ip : c1c33e50  fp : c1c33e4c
> r10: c022d744  r9 : 00000001  r8 : 00000000
> r7 : c03c5554  r6 : c1ca5880  r5 : c1c33e54  r4 : c1ca5880
> r3 : 36677670  r2 : 00000004  r1 : c1c33e54  r0 : c1ca5880
> Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
> Control: 0005317f  Table: 31004000  DAC: 00000017
> Process swapper (pid: 1, stack limit = 0xc1c32270)
> Stack: (0xc1c33e30 to 0xc1c34000)
> 3e20:                                     c1ca5880 c1c47000 c1c19bc0
> c03c5554
> .....
> 3fa0: c001f2e8 c0028a9c 00000040 c03bca48 00000000 00000000 c001befc
> c001c088
> 3fc0: 00000000 00000000 00000000 00000000 c1c33ff4 c1c33fe0 c0008448
> c001f2c0
> 3fe0: 00000000 00000000 00000000 c1c33ff8 c0034df4 c00083c0 b3cc73ac
> 318cb34c
> Backtrace:
> [<c0154074>] (device_get_nodename+0x0/0xdc) from [<c0154260>]
> (dev_uevent+0x110/0x144)
> r7:c03c5554 r6:c1c19bc0 r5:c1c47000 r4:c1ca5880
> [<c0154150>] (dev_uevent+0x0/0x144) from [<c01166fc>]
> (kobject_uevent_env+0x1e4/0x478)
> r5:c1c47000 r4:c1ca5888
> [<c0116518>] (kobject_uevent_env+0x0/0x478) from [<c01169a4>]
> (kobject_uevent+0x14/0x18)
> [<c0116990>] (kobject_uevent+0x0/0x18) from [<c01548b8>]
> (device_del+0x138/0x17c)
> [<c0154780>] (device_del+0x0/0x17c) from [<c0154910>]
> (device_unregister+0x14/0x20)
> r7:00000000 r6:0fe00000 r5:c0257698 r4:c1ca5880
> [<c01548fc>] (device_unregister+0x0/0x20) from [<c0154954>]
> (device_destroy+0x38/0x44)
> r5:c0257698 r4:c1ca5880
> [<c015491c>] (device_destroy+0x0/0x44) from [<c0028a28>]
> (lpg610_cleanup_module+0xd8/0x13c)
> r4:c03cc490
> [<c0028950>] (lpg610_cleanup_module+0x0/0x13c) from [<c0028bf0>]
> (lpg610_init_module+0x164/0x330)
> [<c0028a8c>] (lpg610_init_module+0x0/0x330) from [<c001f2e8>]
> (do_one_initcall+0x38/0x1c4)
>
>
> Thnaks for reading,
> Lev
>
> _______________________________________________
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Baruch Siach | 2 Dec 07:27 2009
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Re: Modifying Javascript on-the-fly in Firefox

Hi Michael,

On Tue, Dec 01, 2009 at 05:05:11PM +0200, Michael Ben-Nes wrote:
> Maybe Greasemonkey?
> https://addons.mozilla.org/en-US/firefox/addon/748

As I said earlier in this thread, I tried Greasemonkey. Unfortunately, I've 
found no way to make changes to an existing Javascript routine using 
Greasemonkey. Even if I could do so, there is the little problem of doing the 
change BEFORE the browser parses the Javascript code, so that the fixed 
version of the routine will run.

If you (or anyone) know(s) a way to achieve this please let me know.

baruch

--

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Aviv Greenberg | 2 Dec 09:46 2009
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Re: Kernel Oopsed, but where ?

On Tue, Dec 1, 2009 at 18:12, Ilya A. Volynets-Evenbakh
<ilya@...> wrote:
> Lev Olshvang wrote:
> Something looks rather messed up, since your init function calls a
> cleanup function.
> Could it be some sort of stack corruption?

Not likely. Many times when an init function fails, cleanup is called.
Since this code path (init->cleanup) does not usually have high
coverage, there is chance of a bug there.

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Shlomi Fish | 3 Dec 11:13 2009
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[TelFOSS] Demo of Cool Open Source Software on Sunday, 6-December-2009

Hi all!

The Tel Aviv Open Source club will meet on Sunday, 6-December-2009 on 18:00 
(not 18:30) to see Tal Ko's demo of cool, comprehensive and cross-platform 
Open Source software. The meeting will take place in the Holcblat ("הולצבלט" 
in Hebrew), hall no. 007 in the main corridor of the Exact Sciences building 
in Tel Aviv University.

The meeting page can be found on:

http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_6_December_2009

And the demo transcript can be found on:

http://wiki.osdc.org.il/index.php/W2FOSS_2009_Demo_Transcript

Attendance is free of charge and everyone are welcome. More information can be 
found in these resources:

* http://welcome.foss.org.il/2009/

* http://www.cs.tau.ac.il/telux/

Regards,

        Shlomi Fish

--

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-----------------------------------------------------------------
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Michael Ben-Nes | 3 Dec 15:12 2009
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Re: 802.11N

Well, its a Linux :) and as such, I wish ssh to it. to tweak it further create tunnels and such.
tc command for example could be a bonus.

--------------------------------------------------
Michael Ben-Nes - Internet Consultant and Director.
http://www.epoch.co.il - weaving the Net.
Cellular: 054-4848113
--------------------------------------------------


On Tue, Dec 1, 2009 at 5:06 PM, Hetz Ben Hamo <hetzbh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
What do you mean "lack of ssh"? ssh to the router? Bezeq router doesn't have SSH either and frankly I don't understand why do you need ssh to the router (if I understood you correctly).

Hetz

2009/12/1 Michael Ben-Nes <michael-ZE272gM1l1A+JF/nGntIXQ@public.gmane.org>

If you in the power user business, dont take Edimax. It lack of ssh ( for example ).

--------------------------------------------------
Michael Ben-Nes - Internet Consultant and Director.
http://www.epoch.co.il - weaving the Net.
Cellular: 054-4848113
--------------------------------------------------



On Sat, Nov 21, 2009 at 5:36 PM, geoffrey mendelson <geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
Can anyone recommend a reliable 802.11N package? (router, USB and PCI clients). Must be availble in Israel. NATIVE Linux and Windows support a must, MacOS a plus.

Thanks in advance,

Geoff.
--
geoffrey mendelson N3OWJ/4X1GM
Jerusalem Israel geoffreymendelson-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org






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