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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