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Re: Fw: [Bugme-new] [Bug 4628] New: Test server hang while running rhr (

To: Ganesh Venkatesan <ganesh.venkatesan@xxxxxxxxx>
Subject: Re: Fw: [Bugme-new] [Bug 4628] New: Test server hang while running rhr (network) test on RHEL4 with kernel 2.6.12-rc1-mm4
From: Jian Jun He <hejianj@xxxxxxxxxx>
Date: Wed, 25 May 2005 11:21:23 +0800
Cc: Andrew Morton <akpm@xxxxxxxx>, Anton Blanchard <anton@xxxxxxxxx>, linuxppc64-dev@xxxxxxxxxxxxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx, Dang En Ren <rende@xxxxxxxxxx>, Lei CDL Wang <cdlwangl@xxxxxxxxxx>, Jia Sen Wang <wangjs@xxxxxxxxxx>
In-reply-to: <5fc59ff305052411366b9b058c@xxxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx

"rhr" is a "Red Hat Certification Testing Suite". You can download it from redhat.com.

Best Regards!

Jian Jun He

CSDL, Beijing
Email: hejianj@xxxxxxxxxx

Inactive hide details for Ganesh Venkatesan <ganesh.venkatesan@xxxxxxxxx>Ganesh Venkatesan <ganesh.venkatesan@xxxxxxxxx>


          Ganesh Venkatesan <ganesh.venkatesan@xxxxxxxxx>

          2005-05-25 02:36
          Please respond to
          Ganesh Venkatesan


To

Andrew Morton <akpm@xxxxxxxx>

cc

netdev@xxxxxxxxxxx, Jian Jun He/China/Contr/IBM@IBMCN, linuxppc64-dev@xxxxxxxxxxxxxxxxxxxxxxxxxx, Anton Blanchard <anton@xxxxxxxxx>

Subject

Re: Fw: [Bugme-new] [Bug 4628] New: Test server hang while running rhr (network) test on RHEL4 with kernel 2.6.12-rc1-mm4

Could you tell me what the rhr test is? Is this an IBM internal test tool?


On 5/16/05, Andrew Morton <akpm@xxxxxxxx> wrote:
>
> Might be a bug in the e100 driver, might not be.
>
> I assume this is the
>
>         BUG_ON(skb->list != NULL);
>
> in __kfree_skb(), although the line number is off-by-one, and the
> .__kfree_skb+0x188/0x240 would tend to contradict that.  Anton, can you
> help work out where we went splat please?
>
> tx timeouts are fairly rare events, so this might not be a recently-added
> bug.
>
> Do we know if it is repeatable?
>
>
>
> Begin forwarded message:
>
> Date: Mon, 16 May 2005 02:44:04 -0700
> From: bugme-daemon@xxxxxxxx
> To: bugme-new@xxxxxxxxxxxxxx
> Subject: [Bugme-new] [Bug 4628] New: Test server hang while running rhr (network) test on RHEL4 with kernel 2.6.12-rc1-mm4
>
>
>
http://bugme.osdl.org/show_bug.cgi?id=4628
>
>            Summary: Test server hang while running rhr (network) test on
>                     RHEL4 with kernel 2.6.12-rc1-mm4
>     Kernel Version: 2.6.12-rc1 with mm4 patch
>             Status: NEW
>           Severity: normal
>              Owner: anton@xxxxxxxxx
>          Submitter: hejianj@xxxxxxxxxx
>                 CC: hanwenb@xxxxxxxxxx,mridge@xxxxxxxxxx,rende@xxxxxxxxxx,wa
>                     ngjs@xxxxxxxxxx
>
>
> Distribution:
> RHEL4 with kernel 2.6.12-rc1-mm4
>
> Hardware Environment:
> IBM OpenPower( CHRP IBM,9124-720 )
>
> Software Environment:
> RHEL4
> RHR: rhr2-rhel4-1.0-14a.noarch.rpm
>
> Problem Description:
> The test server hang while running rhr (network) test on RHEL4 with kernel
> 2.6.12-rc1-mm4.
>
> Steps to reproduce:
> 1. Download kernel 2.6.12-rc1 and 2.6.12-rc1-mm4 patch from kernel.org, then
> build the kernel on OpenPower 720
> 2. Download rhr2-rhel4-1.0-14a.noarch.rpm from rhn.redhat.com and install it on
> the test machine.
> 3. Configure and run the rhr test via invoking redhat-ready.
>
> Additional information:
> Here is the backtrace from xmon.
>
> 3:mon> e
> cpu 0x3: Vector: 700 (Program Check) at [c00000000ffe7920]
>     pc: c00000000029632c: .__kfree_skb+0x188/0x240
>     lr: c000000000296328: .__kfree_skb+0x184/0x240
>     sp: c00000000ffe7ba0
>    msr: 8000000000029032
>   current = 0xc000000107f94040
>   paca    = 0xc000000000431c00
>     pid   = 0, comm = swapper
> kernel BUG in __kfree_skb at net/core/skbuff.c:282!
>
> 3:mon> t
> [c00000000ffe7c40] d0000000000ebac4 .e100_rx_clean_list+0xa0/0x144 [e100]
> [c00000000ffe7ce0] d0000000000ed6dc .e100_tx_timeout+0x7c/0xb0 [e100]
> [c00000000ffe7d70] c0000000002b87bc .dev_watchdog+0xc8/0x154
> [c00000000ffe7e00] c00000000006d6b4 .run_timer_softirq+0x180/0x298
> [c00000000ffe7ed0] c0000000000667d8 .__do_softirq+0xdc/0x1b8
> [c00000000ffe7f90] c000000000014bf0 .call_do_softirq+0x14/0x24
> [c000000086b43860] c0000000000102c4 .do_softirq+0x98/0xac
> [c000000086b438f0] c0000000000669cc .irq_exit+0x70/0x8c
> [c000000086b43970] c000000000011fb8 .timer_interrupt+0x398/0x47c
> [c000000086b43a90] c00000000000a2b4 decrementer_common+0xb4/0x100
> --- Exception: 901 (Decrementer) at c000000000010554 .dedicated_idle+0x114/0x280
> [c000000086b43e80] c0000000000108c8 .cpu_idle+0x3c/0x54
> [c000000086b43f00] c00000000003cc8c .start_secondary+0x108/0x148
> [c000000086b43f90] c00000000000bd84 .enable_64b_mode+0x0/0x28
>
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