[Xen-bugs] [Bug 1294] Kernel Dom0 Oops on high network traffic load, xen 3.2.1-testing

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1294


wickbt@xxxxxxx changed:

           What    |Removed                     |Added
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                 CC|                            |wickbt@xxxxxxx




------- Comment #2 from wickbt@xxxxxxx  2008-07-18 12:56 -------
I've just run into this as well on a Dell Poweredge 2970, Xen 3.2.1 with
2.6.18.8 kernel from the mercurial repo. The only VM running at the time of the
crash was a 64-bit paravirtual instance, same kernel as Dom0.

Manually installing and inserting the latest bnx2 drivers (bnx2-1.7.1c) in
place of the 1.4.44 version included in the Xen kernel seems to resolve this; I
haven't been able to recreate the panic after doing so.

thanks,
- Tim Wickberg
  wickbt@xxxxxxx

Kernel oops is:

bnx2: peth0: BUG! Tx ring full when queue awake!
Unable to handle kernel NULL pointer dereference at 00000000000000e8 RIP:
 [<ffffffff8804de83>] :bnx2:bnx2_poll+0xf8/0xc42
PGD 1f725067 PUD 1f726067 PMD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in: xt_physdev iptable_filter ip_tables x_tables mptctl mptbase
bridge button ac battery ipmi_devintf ipmi_si ipmi_msghandler ipv6 ext3 jbd
serio_raw pcspkr igb i2c_piix4 sfc mii i2c_core tsdev joydev usbhid reiserfs
dm_mirror dm_snapshot dm_mod ide_generic sd_mod ide_cd cdrom megaraid_sas
scsi_mod bnx2 ehci_hcd ohci_hcd usbcore serverworks thermal fan
Pid: 0, comm: swapper Not tainted 2.6.18.8-xen #2
RIP: e030:[<ffffffff8804de83>]  [<ffffffff8804de83>] :bnx2:bnx2_poll+0xf8/0xc42
RSP: e02b:ffffffff80531da0  EFLAGS: 00010286
RAX: 000000000000aeb3 RBX: ffff88001b59daf0 RCX: 000000000000aeb2
RDX: 0000000000000001 RSI: 00000000000000af RDI: ffff880001086000
RBP: ffff880001086500 R08: 0000000000000000 R09: 000000010002b27b
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000aeb2aeaf
R13: 0000000000000000 R14: 000000010002b277 R15: ffff88001c53c000
FS:  00002aec6f483ae0(0000) GS:ffffffff804db000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process swapper (pid: 0, threadinfo ffffffff804f2000, task ffffffff804654e0)
Stack:  ffff880020767600 ffffffff80531eac ffffffff80531eac ffff880001086000
 ffffffff80000000 ffff88001f41ca12 ffffffff80531dd8 ffffffff80531e60
 ffff88001f908ec0 ffff880020767600 0000000000000000 0000000000000001
Call Trace:
 <IRQ> [<ffffffff8039c71f>] netif_receive_skb+0x1ca/0x2eb
 [<ffffffff8039e727>] process_backlog+0xd0/0x182
 [<ffffffff8039e9a2>] net_rx_action+0xe3/0x24a
 [<ffffffff8808abf2>] :megaraid_sas:megasas_isr+0x19/0x282
 [<ffffffff80234d4c>] __do_softirq+0x83/0x117
 [<ffffffff8020b1b0>] call_softirq+0x1c/0x28
 [<ffffffff8020d011>] do_softirq+0x6a/0xed
 [<ffffffff8020cf9e>] do_IRQ+0x6a/0x73
 [<ffffffff8034fd4e>] evtchn_do_upcall+0x13c/0x1fb
 [<ffffffff8020ace6>] do_hypervisor_callback+0x1e/0x2c
 <EOI> [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000
 [<ffffffff802063aa>] hypercall_page+0x3aa/0x1000
 [<ffffffff8020e39c>] raw_safe_halt+0xb8/0xdd
 [<ffffffff8020984d>] xen_idle+0x6d/0x80
 [<ffffffff80209024>] cpu_idle+0xab/0xce
 [<ffffffff804fc7d2>] start_kernel+0x269/0x26e
 [<ffffffff804fc215>] _sinittext+0x215/0x21b


Code: 49 8b 85 e8 00 00 00 66 83 78 06 00 74 20 8b 40 04 ff c0 41
RIP  [<ffffffff8804de83>] :bnx2:bnx2_poll+0xf8/0xc42
 RSP <ffffffff80531da0>
CR2: 00000000000000e8
 <0>Kernel panic - not syncing: Aiee, killing interrupt handler!
 (XEN) Domain 0 crashed: rebooting machine in 5 seconds.



Specific hardware:

03:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3) (prog-if
00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=03, secondary=04, subordinate=04, sec-latency=64
        Memory behind bridge: ec000000-edffffff
        Capabilities: [60] Express PCI/PCI-X Bridge IRQ 0
        Capabilities: [90] PCI-X bridge device
        Capabilities: [b0] Power Management version 2

04:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit
Ethernet (rev 12)
        Subsystem: Dell Unknown device 0205
        Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
        Memory at ec000000 (64-bit, non-prefetchable) [size=32M]
        Capabilities: [40] PCI-X non-bridge device
        Capabilities: [48] Power Management version 2
        Capabilities: [50] Vital Product Data
        Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0
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