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SubjectRe: BNX2: Kernel crashes with 2.6.31 and 2.6.31.9
Hi Michael,

Michael Chan wrote:
> Do we have timers running in this environment? The timer in the bnx2
> driver, bnx2_timer(), needs to run to provide a heart beat to the
> firmware. In netpoll mode without timer interrupts, if we are regularly
> calling the NAPI poll function, it should also be able to provide the
> heartbeat. Without the heartbeat, the firmware will reset the chip and
> result in the NETDEV WATCHDOG.

We have also been seeing watchdog timeouts with bnx2, below is a
stack trace with Benjamin's debug patch applied. Normally we were
only seeing them under heavy load, but this one was at boot. We haven't
tried the latest firmware/driver from 2.6.33 yet. You can contact me
offline if you need more detailed info.

Thanks,

-Brian


[ 2.428093] bnx2 0000:04:00.0: firmware: requesting bnx2/bnx2-rv2p-06-5.0.0.j3.fw
[ 2.432526] eth0: Broadcom NetXtreme II BCM5708 1000Base-T (B2) PCI-X 64-bit 133MHz found at mem f6000000, IRQ 41, node addr 00:1c:c4:e1:cc:ea
[ 2.439520] bnx2 0000:42:00.0: PCI INT A -> GSI 34 (level, low) -> IRQ 34

<snip>

[ 223.805014] ------------[ cut here ]------------
[ 223.805023] WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x12d/0x1d5()
[ 223.805026] Hardware name: ProLiant DL385 G2
[ 223.805028] NETDEV WATCHDOG: eth0 (bnx2): transmit queue 0 timed out
[ 223.805031] Modules linked in: itapi iptable_filter ip_tables x_tables mptctl ipmi_devintf deflate zlib_deflate ctr twofish twofish_common camellia serpent blowfish cast5 des_generic cbc cryptd aes_x86_64 aes_generic xcbc rmd160 sha256_generic sha1_generic crypto_null af_key dm_snapshot dm_mirror dm_region_hash dm_log dm_mod sg bonding sctp crc32c libcrc32c loop psmouse serio_raw amd64_edac_mod edac_core k8temp container i2c_piix4 i2c_core ipmi_si ipmi_msghandler shpchp pci_hotplug hpilo processor evdev ext3 jbd mbcache ses enclosure sd_mod crc_t10dif ide_cd_mod cdrom ata_generic libata ide_pci_generic usbhid hid mptsas bnx2 mptscsih mptbase scsi_transport_sas serverworks ehci_hcd scsi_mod ide_core ohci_hcd uhci_hcd button thermal fan thermal_sys edd [last unloaded: scsi_wait_scan]
[ 223.805102] Pid: 0, comm: swapper Not tainted 2.6.32-clim-4-amd64 #1
[ 223.805105] Call Trace:
[ 223.805108] <IRQ> [<ffffffff812697a0>] ? dev_watchdog+0x12d/0x1d5
[ 223.805118] [<ffffffff81049914>] warn_slowpath_common+0x77/0xa4
[ 223.805123] [<ffffffff810499b6>] warn_slowpath_fmt+0x64/0x66
[ 223.805128] [<ffffffff81045df7>] ? default_wake_function+0xd/0xf
[ 223.805133] [<ffffffff81035fa7>] ? __wake_up_common+0x46/0x76
[ 223.805138] [<ffffffff8103b414>] ? __wake_up+0x43/0x50
[ 223.805143] [<ffffffff81253829>] ? netdev_drivername+0x43/0x4b
[ 223.805147] [<ffffffff812697a0>] dev_watchdog+0x12d/0x1d5
[ 223.805152] [<ffffffff8105e84a>] ? delayed_work_timer_fn+0x0/0x3d
[ 223.805156] [<ffffffff8105e7ee>] ? __queue_work+0x35/0x3d
[ 223.805159] [<ffffffff81269673>] ? dev_watchdog+0x0/0x1d5
[ 223.805164] [<ffffffff8105655a>] run_timer_softirq+0x1ff/0x2a1
[ 223.805169] [<ffffffff810205a1>] ? lapic_next_event+0x18/0x1c
[ 223.805174] [<ffffffff8104f9e3>] __do_softirq+0xde/0x19f
[ 223.805179] [<ffffffff8100ccec>] call_softirq+0x1c/0x28
[ 223.805183] [<ffffffff8100e8b1>] do_softirq+0x41/0x81
[ 223.805187] [<ffffffff8104f7bd>] irq_exit+0x36/0x75
[ 223.805191] [<ffffffff81020f33>] smp_apic_timer_interrupt+0x88/0x96
[ 223.805195] [<ffffffff8100c6b3>] apic_timer_interrupt+0x13/0x20
[ 223.805198] <EOI> [<ffffffff81027740>] ? native_safe_halt+0x6/0x8
[ 223.805207] [<ffffffff81012da3>] ? default_idle+0x55/0x74
[ 223.805210] [<ffffffff810131ce>] ? c1e_idle+0xf4/0xfb
[ 223.805215] [<ffffffff81065529>] ? atomic_notifier_call_chain+0x13/0x15
[ 223.805219] [<ffffffff8100aeec>] ? cpu_idle+0x5b/0x93
[ 223.805225] [<ffffffff81304144>] ? start_secondary+0x1a8/0x1ac
[ 223.805228] ---[ end trace b04d103e6c8c23de ]---
[ 223.805231] bnx2: eth0 DEBUG: intr_sem[0]
[ 223.805236] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 223.805242] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 223.805245] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 228.805016] bnx2: eth0 DEBUG: intr_sem[0]
[ 228.805023] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 228.805029] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 228.805033] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 233.805014] bnx2: eth0 DEBUG: intr_sem[0]
[ 233.805019] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 233.805024] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 233.805028] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 238.805013] bnx2: eth0 DEBUG: intr_sem[0]
[ 238.805019] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 238.805025] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 238.805029] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 243.805015] bnx2: eth0 DEBUG: intr_sem[0]
[ 243.805021] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 243.805027] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 243.805031] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 248.805014] bnx2: eth0 DEBUG: intr_sem[0]
[ 248.805019] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 248.805025] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 248.805028] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 253.805015] bnx2: eth0 DEBUG: intr_sem[0]
[ 253.805021] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 253.805027] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 253.805031] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 258.805016] bnx2: eth0 DEBUG: intr_sem[0]
[ 258.805022] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 258.805027] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 258.805031] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 263.805013] bnx2: eth0 DEBUG: intr_sem[0]
[ 263.805018] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 263.805023] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 263.805027] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 268.805014] bnx2: eth0 DEBUG: intr_sem[0]
[ 268.805019] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 268.805025] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 268.805028] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 273.805015] bnx2: eth0 DEBUG: intr_sem[0]
[ 273.805022] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 273.805028] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 273.805032] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 278.805012] bnx2: eth0 DEBUG: intr_sem[0]
[ 278.805017] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 278.805023] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 278.805026] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 283.805012] bnx2: eth0 DEBUG: intr_sem[0]
[ 283.805016] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 283.805022] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 283.805025] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 288.805015] bnx2: eth0 DEBUG: intr_sem[0]
[ 288.805022] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 288.805028] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 288.805031] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 293.805011] bnx2: eth0 DEBUG: intr_sem[0]
[ 293.805016] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 293.805022] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 293.805026] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 298.805015] bnx2: eth0 DEBUG: intr_sem[0]
[ 298.805021] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 298.805027] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 298.805030] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 303.805013] bnx2: eth0 DEBUG: intr_sem[0]
[ 303.805020] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 303.805026] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 303.805030] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 308.805013] bnx2: eth0 DEBUG: intr_sem[0]
[ 308.805018] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 308.805023] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 308.805027] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]
[ 313.805011] bnx2: eth0 DEBUG: intr_sem[0]
[ 313.805016] bnx2: eth0 DEBUG: EMAC_TX_STATUS[00000008] RPM_MGMT_PKT_CTRL[00000000]
[ 313.805022] bnx2: eth0 DEBUG: MCP_STATE_P0[00000000] MCP_STATE_P1[00000000]
[ 313.805025] bnx2: eth0 DEBUG: HC_STATS_INTERRUPT_STATUS[00000000]


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