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    SubjectRe: sky2 panic in 2.6.32.1 under load (new oops)
      More data points - I'm able to reliably recreate this now.
    While I thought it was coincidence, each and every time I hit this issue
    there is a DHCP renew event immediately before the first error.
    The crash occurs while under load - in my case seems that the traffic is
    actually IPV6 (hadn't noticed that before).
    I ran nethogs on a remote display - the reported rx rate on the IPV6 smb
    connection at the time of the lockup was 33889.688 KB/sec on a 1gbit
    nic. I've got two events like this - don't recall if the earlier one was
    the exact same # - but it was in the ballpark.

    On 12/24/2009 2:01 AM, Andrew Morton wrote:
    > cc's added again.
    >
    > On Wed, 23 Dec 2009 17:54:27 -0500 Michael Breuer<mbreuer@majjas.com> wrote:
    >
    >
    >> Ok - not the firmware. Ran another Windows backup and sky2 went down.
    >>
    >> Nothing in dmesg.old - have oops in syslog. System became unresponsive
    >> and watchdog kicked in after a minute.
    >>
    >> Also note that I have a similar oops with VT-D disabled (posted here on
    >> 12/5). I'm attaching the oops from that below this oops for comparison.
    >> That also happened under similar load.
    >>
    >> On the assumption that I can recreate this (although it takes a while)
    >> please let me know how I can help.
    >>
    >> What's in my log (starting with an smbd error about 2 min before the
    >> oops (note: the dchpd is not the system doing the backup).
    >>
    > This (nastily wordwrapped) oops appers to be quite different from
    > Berck's one.
    >
    >
    >
    >
    >> Dec 23 17:31:05 mail smbd[20712]: [2009/12/23 17:31:05, 0]
    >> smbd/nttrans.c:2076(call_nt_transact_ioctl)
    >> Dec 23 17:31:05 mail smbd[20712]: call_nt_transact_ioctl(0x900eb):
    >> Currently not implemented.
    >> Dec 23 17:31:34 mail clamd[3449]: SelfCheck: Database status OK.
    >> Dec 23 17:32:22 mail named[4284]: client 208.78.169.235#32797: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:32:22 mail named[4284]: client 208.78.169.235#32797: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:32:22 mail named[4284]: client 208.78.169.235#32797: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:32:54 mail dhcpd: DHCPINFORM from 10.0.0.3 via eth0
    >> Dec 23 17:32:54 mail dhcpd: DHCPACK to 10.0.0.3 (00:21:5d:cb:a1:74) via eth0
    >> Dec 23 17:32:58 mail kernel: DRHD: handling fault status reg 2
    >> Dec 23 17:32:58 mail kernel: DMAR:[DMA Read] Request device [06:00.0]
    >> fault addr fff8423fe000
    >> Dec 23 17:32:58 mail kernel: DMAR:[fault reason 06] PTE Read access is
    >> not set
    >> Dec 23 17:32:58 mail kernel: sky2 0000:06:00.0: error interrupt
    >> status=0x80000000
    >> Dec 23 17:32:58 mail kernel: sky2 0000:06:00.0: PCI hardware error (0x2010)
    >> Dec 23 17:33:06 mail kernel: ------------[ cut here ]------------
    >> Dec 23 17:33:06 mail kernel: WARNING: at net/sched/sch_generic.c:255
    >> dev_watchdog+0xf3/0x161()
    >> Dec 23 17:33:06 mail kernel: Hardware name: System Product Name
    >> Dec 23 17:33:06 mail kernel: NETDEV WATCHDOG: eth0 (sky2): transmit
    >> queue 0 timed out
    >> Dec 23 17:33:06 mail kernel: Modules linked in: ip6table_filter
    >> ip6table_mangle ip6_tables iptable_raw iptable_mangle ipt_MASQUERADE
    >> iptable_nat nf_nat bridge stp appletalk psnap llc nfsd lockd nfs_acl
    >> auth_rpcgss exportfs sunrpc hwmon_vid coretemp acpi_cpufreq sit tunnel4
    >> ipt_LOG nf_conntrack_netbios_ns nf_conntrack_ftp xt_DSCP xt_dscp xt_MARK
    >> nf_conntrack_ipv6 xt_multiport ipv6 dm_multipath kvm_intel kvm
    >> snd_hda_codec_analog snd_ens1371 gameport snd_hda_intel snd_hda_codec
    >> snd_rawmidi snd_ac97_codec ac97_bus snd_hwdep snd_seq snd_seq_device
    >> snd_pcm snd_timer gspca_spca505 snd gspca_main soundcore snd_page_alloc
    >> videodev firewire_ohci sky2 v4l1_compat v4l2_compat_ioctl32
    >> firewire_core iTCO_wdt wmi asus_atk0110 iTCO_vendor_support i2c_i801
    >> hwmon pcspkr crc_itu_t raid456 async_raid6_recov async_pq raid6_pq
    >> async_xor xor async_memcpy async_tx raid1 ata_generic pata_acpi
    >> pata_marvell nouveau ttm drm_kms_helper drm agpgart fb i2c_algo_bit
    >> cfbcopyarea i2c_core cfbimgblt cfbfillrect [last unloaded: ip6_tables]
    >> Dec 23 17:33:06 mail kernel: Pid: 0, comm: swapper Tainted: G W
    >> 2.6.32-09281-g1c42cda #6
    >> Dec 23 17:33:06 mail kernel: Call Trace:
    >> Dec 23 17:33:06 mail kernel:<IRQ> [<ffffffff8104afbd>]
    >> warn_slowpath_common+0x7c/0x94
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8104b02c>]
    >> warn_slowpath_fmt+0x41/0x43
    >> Dec 23 17:33:06 mail kernel: [<ffffffff813d096f>] ? netif_tx_lock+0x44/0x6c
    >> Dec 23 17:33:06 mail kernel: [<ffffffff813d0ad7>] dev_watchdog+0xf3/0x161
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8105610c>] ? cascade+0x6a/0x84
    >> Dec 23 17:33:06 mail kernel: [<ffffffff81058558>]
    >> run_timer_softirq+0x1c8/0x270
    >> Dec 23 17:33:06 mail kernel: [<ffffffff81051595>] __do_softirq+0xf8/0x1cd
    >> Dec 23 17:33:06 mail kernel: [<ffffffff810720af>] ?
    >> tick_program_event+0x2a/0x2c
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8100ab1c>] call_softirq+0x1c/0x30
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8100c2b3>] do_softirq+0x4b/0xa3
    >> Dec 23 17:33:06 mail kernel: [<ffffffff81051181>] irq_exit+0x4a/0x8c
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8145ed99>]
    >> smp_apic_timer_interrupt+0x86/0x94
    >> Dec 23 17:33:06 mail kernel: [<ffffffff8100a5d3>]
    >> apic_timer_interrupt+0x13/0x20
    >> Dec 23 17:33:06 mail kernel:<EOI> [<ffffffff812ae5fa>] ?
    >> acpi_idle_enter_bm+0x256/0x28a
    >> Dec 23 17:33:06 mail kernel: [<ffffffff812ae5f3>] ?
    >> acpi_idle_enter_bm+0x24f/0x28a
    >> Dec 23 17:33:06 mail kernel: [<ffffffff81393308>]
    >> cpuidle_idle_call+0x9e/0xfa
    >> Dec 23 17:33:06 mail kernel: [<ffffffff81008c05>] cpu_idle+0xb4/0xf6
    >> Dec 23 17:33:06 mail kernel: [<ffffffff814532b2>]
    >> start_secondary+0x201/0x242
    >> Dec 23 17:33:06 mail kernel: ---[ end trace 57f7151f6a5def07 ]---
    >> Dec 23 17:33:06 mail kernel: sky2 eth0: tx timeout
    >> Dec 23 17:33:06 mail kernel: sky2 eth0: disabling interface
    >> Dec 23 17:33:06 mail kernel: sky2 eth0: enabling interface
    >> Dec 23 17:33:06 mail NetworkManager:<info> (eth0): carrier now OFF
    >> (device state 1)
    >> Dec 23 17:33:11 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
    >> duplex, flow control both
    >> Dec 23 17:33:11 mail NetworkManager:<info> (eth0): carrier now ON
    >> (device state 1)
    >> Dec 23 17:33:26 mail kernel: sky2 eth0: tx timeout
    >> Dec 23 17:33:26 mail kernel: sky2 eth0: disabling interface
    >> Dec 23 17:33:26 mail kernel: sky2 eth0: enabling interface
    >> Dec 23 17:33:26 mail NetworkManager:<info> (eth0): carrier now OFF
    >> (device state 1)
    >> Dec 23 17:33:28 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:28 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:28 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:29 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:29 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:29 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
    >> duplex, flow control both
    >> Dec 23 17:33:29 mail NetworkManager:<info> (eth0): carrier now ON
    >> (device state 1)
    >> Dec 23 17:33:30 mail named[4284]: client 114.80.99.2#44695: view
    >> External: query (cache) './NS/IN' denied
    >> Dec 23 17:33:38 mail named[4284]: error (connection refused) resolving
    >> '121.93.27.216.blackholes.mail-abuse.org/A/IN': 168.61.5.195#53
    >> Dec 23 17:33:44 mail kernel: sky2 eth0: tx timeout
    >> Dec 23 17:33:44 mail kernel: sky2 eth0: disabling interface
    >> Dec 23 17:33:44 mail kernel: sky2 eth0: enabling interface
    >> Dec 23 17:33:44 mail NetworkManager:<info> (eth0): carrier now OFF
    >> (device state 1)
    >> Dec 23 17:33:49 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
    >> duplex, flow control both
    >> Dec 23 17:33:49 mail NetworkManager:<info> (eth0): carrier now ON
    >> (device state 1)
    >> Dec 23 17:33:52 mail dhcpd: DHCPINFORM from 10.0.0.11 via eth0
    >> Dec 23 17:33:52 mail dhcpd: DHCPACK to 10.0.0.11 (00:1a:92:8d:30:81) via
    >> eth0
    >> Dec 23 17:34:01 mail smbd[24783]: [2009/12/23 17:34:01, 0]
    >> lib/util_sock.c:539(read_fd_with_timeout)
    >> Dec 23 17:34:01 mail smbd[24783]: [2009/12/23 17:34:01, 0]
    >> lib/util_sock.c:1491(get_peer_addr_internal)
    >> Dec 23 17:34:01 mail smbd[24783]: getpeername failed. Error was
    >> Transport endpoint is not connected
    >> Dec 23 17:34:01 mail smbd[24783]: read_fd_with_timeout: client 0.0.0.0
    >> read error = Connection reset by peer.
    >> Dec 23 17:34:04 mail abrt: Kerneloops: Reported 1 kernel oopses to Abrt
    >> Dec 23 17:34:04 mail abrtd: Directory 'kerneloops-1261607644-1' creation
    >> detected
    >> Dec 23 17:34:04 mail abrtd: Getting local universal unique identification
    >> Dec 23 17:34:04 mail abrtd: New crash, saving
    >> Dec 23 17:34:04 mail abrtd: Activation of plugin 'RunApp' was not
    >> successful: Plugin 'RunApp' is not registered
    >> Dec 23 17:34:04 mail kernel: sky2 eth0: tx timeout
    >> Dec 23 17:34:04 mail kernel: sky2 eth0: disabling interface
    >> Dec 23 17:34:04 mail kernel: sky2 eth0: enabling interface
    >> Dec 23 17:34:04 mail NetworkManager:<info> (eth0): carrier now OFF
    >> (device state 1)
    >> Dec 23 17:34:09 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
    >> duplex, flow control both
    >> Dec 23 17:34:09 mail NetworkManager:<info> (eth0): carrier now ON
    >> (device state 1)
    >> Dec 23 17:34:11 mail logger: ping of potter failed
    >> Dec 23 17:34:19 mail kernel: sky2 eth0: tx timeout
    >> Dec 23 17:34:19 mail kernel: sky2 eth0: disabling interface
    >> Dec 23 17:34:19 mail kernel: sky2 eth0: enabling interface
    >> Dec 23 17:34:19 mail NetworkManager:<info> (eth0): carrier now OFF
    >> (device state 1)
    >> Dec 23 17:34:22 mail kernel: sky2 eth0: Link is up at 1000 Mbps, full
    >> duplex, flow control both
    >> Dec 23 17:34:22 mail NetworkManager:<info> (eth0): carrier now ON
    >> (device state 1)
    >> Dec 23 17:37:40 mail kernel: imklog 4.4.2, log source = /proc/kmsg started.
    >>
    >> Oops from 12/5 (no vt-d; no intel_iommu, firmware .12)
    >>
    >> Dec 5 11:27:41 mail kernel: ------------[ cut here ]------------
    >> Dec 5 11:27:41 mail kernel: WARNING: at lib/dma-debug.c:898
    >> check_sync+0xbd/0x426()
    >> Dec 5 11:27:41 mail kernel: Hardware name: System Product Name
    >> Dec 5 11:27:41 mail kernel: sky2 0000:06:00.0: DMA-API: device driver
    >> tries to sync DMA memory it has not allocated [device
    >> address=0x000000031a57e022] [size=66 bytes]
    >> Dec 5 11:27:41 mail kernel: Modules linked in: bridge stp appletalk
    >> psnap llc nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc hwmon_vid
    >> coretemp acpi_cpufreq sit tunnel4 ipt_LOG ipt_MASQUERADE iptable_nat
    >> nf_nat iptable_mangle iptable_raw nf_conntrack_netbios_ns
    >> nf_conntrack_ftp nf_conntrack_ipv6 xt_multiport ip6table_filter xt_DSCP
    >> xt_dscp xt_MARK ip6table_mangle ip6_tables ipv6 dm_multipath kvm_intel
    >> kvm snd_hda_codec_analog snd_ens1371 gameport snd_rawmidi snd_ac97_codec
    >> snd_hda_intel snd_hda_codec ac97_bus gspca_spca505 snd_hwdep snd_seq
    >> snd_seq_device firewire_ohci gspca_main snd_pcm videodev firewire_core
    >> sky2 snd_timer v4l1_compat wmi snd v4l2_compat_ioctl32 soundcore
    >> crc_itu_t snd_page_alloc asus_atk0110 i2c_i801 iTCO_wdt
    >> iTCO_vendor_support pcspkr hwmon raid456 async_raid6_recov async_pq
    >> raid6_pq async_xor xor async_memcpy async_tx raid1 ata_generic pata_acpi
    >> pata_marvell nouveau ttm drm_kms_helper drm agpgart fb i2c_algo_bit
    >> cfbcopyarea i2c_core cfbimgblt cfbfillrect [last unloaded: scsi_wait_scan]
    >> Dec 5 11:27:41 mail kernel: Pid: 0, comm: swapper Not tainted
    >> 2.6.32-00573-g6cf4d67 #2
    >> Dec 5 11:27:41 mail kernel: Call Trace:
    >> Dec 5 11:27:41 mail kernel:<IRQ> [<ffffffff8105365a>]
    >> warn_slowpath_common+0x7c/0x94
    >> Dec 5 11:27:41 mail kernel: [<ffffffff810536c9>]
    >> warn_slowpath_fmt+0x41/0x43
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8127b1fd>] check_sync+0xbd/0x426
    >> Dec 5 11:27:41 mail kernel: [<ffffffff813ca254>] ?
    >> __netdev_alloc_skb+0x34/0x50
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8127b8b9>]
    >> debug_dma_sync_single_for_cpu+0x42/0x44
    >> Dec 5 11:27:41 mail kernel: [<ffffffff81278c5f>] ?
    >> swiotlb_sync_single+0x2a/0xb6
    >> Dec 5 11:27:41 mail kernel: [<ffffffff81278dbb>] ?
    >> swiotlb_sync_single_for_cpu+0xc/0xe
    >> Dec 5 11:27:41 mail kernel: [<ffffffffa01cee83>] sky2_poll+0x4c6/0xae1
    >> [sky2]
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8146bb1a>] ?
    >> _spin_unlock_irqrestore+0x29/0x41
    >> Dec 5 11:27:41 mail kernel: [<ffffffff813d0ef2>] net_rx_action+0xb5/0x1f3
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8105ae3b>] __do_softirq+0xf8/0x1cd
    >> Dec 5 11:27:41 mail kernel: [<ffffffff810a2dea>] ?
    >> handle_IRQ_event+0x119/0x12b
    >> Dec 5 11:27:41 mail kernel: [<ffffffff81012e1c>] call_softirq+0x1c/0x30
    >> Dec 5 11:27:41 mail kernel: [<ffffffff810143a3>] do_softirq+0x4b/0xa6
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8105aa1b>] irq_exit+0x4a/0x8c
    >> Dec 5 11:27:41 mail kernel: [<ffffffff8146fb75>] do_IRQ+0xa5/0xbc
    >> Dec 5 11:27:41 mail kernel: [<ffffffff81012613>] ret_from_intr+0x0/0x16
    >> Dec 5 11:27:41 mail kernel:<EOI> [<ffffffff812c6b3e>] ?
    >> acpi_idle_enter_bm+0x256/0x28a
    >> Dec 5 11:27:41 mail kernel: [<ffffffff812c6b37>] ?
    >> acpi_idle_enter_bm+0x24f/0x28a
    >> Dec 5 11:27:41 mail kernel: [<ffffffff813a6280>] ?
    >> cpuidle_idle_call+0x9e/0xfa
    >> Dec 5 11:27:41 mail kernel: [<ffffffff81010c90>] ? cpu_idle+0xb4/0xf6
    >> Dec 5 11:27:41 mail kernel: [<ffffffff814651f2>] ?
    >> start_secondary+0x201/0x242
    >> Dec 5 11:27:41 mail kernel: ---[ end trace ff8485ac82013a8d ]---
    >> On 12/22/2009 01:50 PM, Michael Breuer wrote:
    >>
    >>> I updated my firmware (Marvell/Yukon)) from .12 to .14. Going to leave
    >>> my kernel version unchanged for the next week or so and see if this
    >>> recurs.
    >>> On 12/21/2009 7:09 PM, Michael Breuer wrote:
    >>>
    >>>> Just an FYI - I got one of these today as well - also 2.6.32 (last
    >>>> git before 2.6.33 rc1). I also had two similar events previously -
    >>>> one 2.6.31, and one 2.6.32 rc7.
    >>>>
    >>>> I was doing some research today and came across a fair sampling of
    >>>> error reports all suggesting that new firmware is a solution.
    >>>> Gigabyte (not my MB) has firmware posted, but I haven't yet attempted
    >>>> to apply it (nor am I sure how to test it after doing so).
    >>>>
    >>>> For what it's worth, my three recent events were heavy smb usage -
    >>>> windows system backing up. Today's event did not generate an oops as
    >>>> my watchdog kicked in and rebooted the system after the kernel
    >>>> reported a sky2 error.
    >>>>
    >>>> The last messages before watchdog:
    >>>> Dec 20 05:33:58 mail kernel: DRHD: handling fault status reg 2
    >>>> Dec 20 05:33:58 mail kernel: DMAR:[DMA Read] Request device [06:00.0]
    >>>> fault addr ffe1a7ffe000
    >>>> Dec 20 05:33:58 mail kernel: DMAR:[fault reason 06] PTE Read access
    >>>> is not set
    >>>> Dec 20 05:33:58 mail kernel: sky2 0000:06:00.0: error interrupt
    >>>> status=0x80000000
    >>>> Dec 20 05:33:58 mail kernel: sky2 0000:06:00.0: PCI hardware error
    >>>> (0x2010)
    >>>>
    >>>> During the previous event I had vt-d disabled - it was enabled this
    >>>> time.
    >>>>
    >>>>
    >>>> On 12/21/2009 6:52 PM, Berck E. Nash wrote:
    >>>>
    >>>>> Since 2.6.32, I've been getting kernel panics under heavy network load
    >>>>> (bittorrent usage).
    >>>>>
    >>>>> [ 8673.345873] sky2 eth0: receiver hang detected
    >>>>> [ 8673.350368] sky2 eth0: disabling interface
    >>>>> [ 8673.354749] BUG: unable to handle kernel NULL pointer dereference at
    >>>>> 0000000000000010
    >>>>> [ 8673.359748] IP: [<ffffffffa00373d3>] sky2_xmit_frame+0x321/0x5d8
    >>>>> [sky2]
    >>>>> [ 8673.364675] PGD a09a6067 PUD a09a5067 PMD 0
    >>>>> [ 8673.373838] Oops: 0002 [#1] SMP
    >>>>> [ 8673.373838] last sysfs file:
    >>>>> /sys/devices/platform/coretemp.1/temp1_label
    >>>>> [ 8673.383900] CPU 0
    >>>>> [ 8673.383900] Modules linked in: nfsd exportfs nfs lockd nfs_acl
    >>>>> auth_rpcgss sunrpc nls_cp437 msdos fat kvm_intel kvm fuse snd_rtctimer
    >>>>> hwmon_vid nvidia(P) usbhid tuner_simple tuner_types wm8775 tda9887
    >>>>> snd_hda_codec_realtek tda8290 snd_hda_intel tuner snd_hda_codec
    >>>>> snd_pcm_oss snd_mixer_oss snd_pcm cx25840 snd_seq_dummy snd_seq_oss
    >>>>> snd_seq_midi_event ivtv snd_seq i2c_algo_bit cx2341x v4l2_common
    >>>>> snd_timer videodev uhci_hcd snd_seq_device v4l1_compat ehci_hcd snd
    >>>>> v4l2_compat_ioctl32 i2c_i801 soundcore snd_page_alloc floppy sky2
    >>>>> usbcore tveeprom
    >>>>> [ 8673.435268] Pid: 4, comm: ksoftirqd/0 Tainted: P 2.6.32.1
    >>>>> #3 P5W DH Deluxe
    >>>>> [ 8673.438943] RIP: 0010:[<ffffffffa00373d3>] [<ffffffffa00373d3>]
    >>>>> sky2_xmit_frame+0x321/0x5d8 [sky2]
    >>>>> [ 8673.448539] RSP: 0018:ffff880001603df8 EFLAGS: 00010246
    >>>>> [ 8673.458678] RAX: 0000000000000000 RBX: ffff8800bd201d40 RCX:
    >>>>> 0000000000000000
    >>>>> [ 8673.465016] RDX: 0000000000000000 RSI: 000000000000008c RDI:
    >>>>> 0000000000000000
    >>>>> [ 8673.472396] RBP: ffff880001603e48 R08: 0000000000000001 R09:
    >>>>> 0000000000000000
    >>>>> [ 8673.474083] R10: 000000000000001e R11: 0000000000000ef8 R12:
    >>>>> ffff88009bf3ab48
    >>>>> [ 8673.484317] R13: ffff8800bef4d000 R14: 0000000000000000 R15:
    >>>>> 00000000955fa87e
    >>>>> [ 8673.492381] FS: 0000000000000000(0000) GS:ffff880001600000(0000)
    >>>>> knlGS:0000000000000000
    >>>>> [ 8673.501448] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    >>>>> [ 8673.509707] CR2: 0000000000000010 CR3: 00000000a09bf000 CR4:
    >>>>> 00000000000026f0
    >>>>> [ 8673.514146] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
    >>>>> 0000000000000000
    >>>>> [ 8673.520661] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
    >>>>> 0000000000000400
    >>>>> [ 8673.528842] Process ksoftirqd/0 (pid: 4, threadinfo
    >>>>> ffff8800bf8b4000,
    >>>>> task ffff8800bf8a8650)
    >>>>> [ 8673.539212] Stack:
    >>>>> [ 8673.539212] ffff8800992f5980 ffff8800955fa87e ffff8800bd201800
    >>>>> 000000428122a659
    >>>>> [ 8673.548658]<0> ffff880001603e48 ffff88009bf3ab48 ffff8800992f5980
    >>>>> ffffffff813eaf30
    >>>>> [ 8673.556929]<0> ffff8800bd201800 ffff8800bef03940 ffff880001603e98
    >>>>> ffffffff81231de8
    >>>>> [ 8673.565432] Call Trace:
    >>>>> [ 8673.565432]<IRQ>
    >>>>> [ 8673.565432] [<ffffffff81231de8>] dev_hard_start_xmit+0x21c/0x2b7
    >>>>> [ 8673.574516] [<ffffffff81041746>] ? run_timer_softirq+0x4f/0x1c9
    >>>>> [ 8673.579515] [<ffffffff81240252>] sch_direct_xmit+0x5e/0x154
    >>>>> [ 8673.584559] [<ffffffff81240404>] __qdisc_run+0xbc/0xd5
    >>>>> [ 8673.592673] [<ffffffff8122fb19>] net_tx_action+0xbb/0x10e
    >>>>> [ 8673.598719] [<ffffffff8103dc16>] __do_softirq+0x91/0x11b
    >>>>> [ 8673.601787] [<ffffffff8100be9c>] call_softirq+0x1c/0x28
    >>>>> [ 8673.609833]<EOI>
    >>>>> [ 8673.610994] [<ffffffff8100d907>] do_softirq+0x33/0x6b
    >>>>> [ 8673.614419] [<ffffffff8103d71e>] ksoftirqd+0x60/0xd7
    >>>>> [ 8673.620082] [<ffffffff8103d6be>] ? ksoftirqd+0x0/0xd7
    >>>>> [ 8673.620082] [<ffffffff8104aee7>] kthread+0x7a/0x82
    >>>>> [ 8673.629310] [<ffffffff8100bd9a>] child_rip+0xa/0x20
    >>>>> [ 8673.634137] [<ffffffff8104ae6d>] ? kthread+0x0/0x82
    >>>>> [ 8673.639492] [<ffffffff8100bd90>] ? child_rip+0x0/0x20
    >>>>> [ 8673.647639] Code: 06 00 00 00 00 89 08 66 c7 40 04 00 00 c6 40 06 01
    >>>>> c6 40 07 9f 41 0f b7 c6 48 89 c7 48 c1 e0 03 48 c1 e7 05 48 89 f9 48 03
    >>>>> 4b 20<4c> 89 79 10 48 c7 41 08 01 00 00 00 8b 75 cc 89 71 18 48 03 7b
    >>>>> [ 8673.667726] RIP [<ffffffffa00373d3>] sky2_xmit_frame+0x321/0x5d8
    >>>>> [sky2]
    >>>>> [ 8673.674902] RSP<ffff880001603df8>
    >>>>> [ 8673.674902] CR2: 0000000000000010
    >>>>> [ 8673.682956] hda-intel: IRQ timing workaround is activated for card
    >>>>> #0. Suggest a bigger bdl_pos_adj.
    >>>>> [ 8673.683015] ---[ end trace 2c387977cf1c7c9a ]---
    >>>>> [ 8673.683017] Kernel panic - not syncing: Fatal exception in interrupt
    >>>>> [ 8673.683020] Pid: 4, comm: ksoftirqd/0 Tainted: P D
    >>>>> 2.6.32.1 #3
    >>>>> [ 8673.683021] Call Trace:
    >>>>> [ 8673.683023]<IRQ> [<ffffffff8129839d>] panic+0x75/0x11c
    >>>>> [ 8673.683030] [<ffffffff8100e9a7>] oops_end+0x81/0x8e
    >>>>> [ 8673.683033] [<ffffffff81026e5f>] no_context+0x1ee/0x1fd
    >>>>> [ 8673.683036] [<ffffffff81032a6d>] ? find_busiest_group+0x387/0x8d8
    >>>>> [ 8673.683039] [<ffffffff81026fe0>] __bad_area_nosemaphore+0x172/0x195
    >>>>> [ 8673.683041] [<ffffffff81027011>] bad_area_nosemaphore+0xe/0x10
    >>>>> [ 8673.683044] [<ffffffff8102724b>] do_page_fault+0x114/0x252
    >>>>> [ 8673.683047] [<ffffffff8129a97f>] page_fault+0x1f/0x30
    >>>>> [ 8673.683054] [<ffffffffa00373d3>] ? sky2_xmit_frame+0x321/0x5d8
    >>>>> [sky2]
    >>>>> [ 8673.683058] [<ffffffffa00371b8>] ? sky2_xmit_frame+0x106/0x5d8
    >>>>> [sky2]
    >>>>> [ 8673.683061] [<ffffffff81231de8>] dev_hard_start_xmit+0x21c/0x2b7
    >>>>> [ 8673.683065] [<ffffffff81041746>] ? run_timer_softirq+0x4f/0x1c9
    >>>>> [ 8673.683067] [<ffffffff81240252>] sch_direct_xmit+0x5e/0x154
    >>>>> [ 8673.683070] [<ffffffff81240404>] __qdisc_run+0xbc/0xd5
    >>>>> [ 8673.683072] [<ffffffff8122fb19>] net_tx_action+0xbb/0x10e
    >>>>> [ 8673.683075] [<ffffffff8103dc16>] __do_softirq+0x91/0x11b
    >>>>> [ 8673.683078] [<ffffffff8100be9c>] call_softirq+0x1c/0x28
    >>>>> [ 8673.683079]<EOI> [<ffffffff8100d907>] do_softirq+0x33/0x6b
    >>>>> [ 8673.683083] [<ffffffff8103d71e>] ksoftirqd+0x60/0xd7
    >>>>> [ 8673.683085] [<ffffffff8103d6be>] ? ksoftirqd+0x0/0xd7
    >>>>> [ 8673.683088] [<ffffffff8104aee7>] kthread+0x7a/0x82
    >>>>> [ 8673.683090] [<ffffffff8100bd9a>] child_rip+0xa/0x20
    >>>>> [ 8673.683093] [<ffffffff8104ae6d>] ? kthread+0x0/0x82
    >>>>> [ 8673.683095] [<ffffffff8100bd90>] ? child_rip+0x0/0x20
    >>>>>
    >>>>> Note that sometimes I get the receiver hang and things continue without
    >>>>> the crash:
    >>>>>
    >>>>> [ 1219.346571] sky2 eth0: receiver hang detected
    >>>>> [ 1219.351145] sky2 eth0: disabling interface
    >>>>> [ 1219.357389] sky2 eth0: enabling interface
    >>>>> [ 1222.572980] sky2 eth0: Link is up at 1000 Mbps, full duplex, flow
    >>>>> control both
    >>>>>
    >>>>> Please CC as I'm not subscribed.
    >>>>>
    >>>>> Thanks,
    >>>>> Berck Nash
    >>>>> --
    >>>>> To unsubscribe from this list
    >>>>>
    >>> --
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    >>> linux-kernel" in
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    >> --
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