netdev - Re: 2.6.35-rc2 kernel crashes under heavy network load

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Message-ID: <AANLkTimBwvUpWCOPJaBXqh2-l7-6to3QGuXvafXbCu6s@mail.gmail.com>
Date:	Wed, 16 Jun 2010 17:24:44 +0200
From:	Lazy <lazy404@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	linux-kernel@...r.kernel.org, netdev <netdev@...r.kernel.org>
Subject: Re: 2.6.35-rc2 kernel crashes under heavy network load

2010/6/16 Eric Dumazet <eric.dumazet@...il.com>:
> Le mercredi 16 juin 2010 à 15:39 +0200, Lazy a écrit :
>> Our linux router crashes while rebooting under heavy network load
>> (800kpps generated by pktgen on other machine).
>> While running everything system seams stable.
>>
>> Any pointers what can I do to help resolve this issue ?
>>
>> the system is Dell R210 X3420, 64bit kernel, debian 5.0 Broadcom BCM5716
>> same thing happens on a Dell R410 running same software Broadcom BCM5716
>>
>> kernel version is Linux version 2.6.35-rc2 (root@...co3-2) (gcc
>> version 4.3.2 (Debian 4.3.2-1.1) ) #2 SMP Fri Jun 11 10:22:51 CEST
>> 2010
>>
>> general protection fault: 0000 [#1] SMP
>> last sysfs file: /sys/devices/platform/dcdbas/smi_data_buf_phys_addr
>> CPU 1
>> Modules linked in: iTCO_wdt 8021q ipmi_poweroff ipmi_devintf ipmi_si
>> ipmi_msghandler mptctl loop ioatdma dca button evdev dcdbas raid10
>> raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq
>> async_tx raid1 raid0 linear md_mod sd_mod sg sr_mod cdrom
>> ide_pci_generic ide_core usbhid mptsas ata_piix mptscsih libata
>> mptbase scsi_transport_sas scsi_mod ehci_hcd uhci_hcd bnx2 fan [last
>> unloaded: scsi_wait_scan]
>>
>> Pid: 20, comm: events/1 Not tainted 2.6.35-rc2 #2 0N051F/PowerEdge R410
>> RIP: 0010:[<ffffffff81087ae9>]  [<ffffffff81087ae9>] drain_array+0x29/0xc7
>> RSP: 0000:ffff88012fb6ddc0  EFLAGS: 00010202
>> RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000
>> RDX: 0720072007200720 RSI: ffff88012fc04ec0 RDI: ffff88012fc1be00
>> RBP: ffff88012fb6de00 R08: 0000000000000000 R09: ffff88012fa91618
>> R10: 000000102cdbdd88 R11: 0000000000000000 R12: ffff88012fc04ec0
>> R13: 0720072007200720 R14: ffff88012fc04ec0 R15: 0000000000000000
>
> 072007200720 pattern is the signature of a known bug.
>
>
> commit 386f40c86d6c8d5b717 (Revert "tty: fix a little bug in scrup,
> vt.c") will help you.
>
> This is probably solved in current git tree...


You are right, 2.6.35-rc3 (with this commit) works fine

thank You

-- 
Michal Grzedzicki
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