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<DIV><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><I style="COLOR: #ff0000">I've been struggling with a kernel panic during enumeration of </I><I style="COLOR: #ff0000">a Rapid IO system.</I></PRE><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><I style="COLOR: #ff0000">I am using the AM4140 with Freescale P4080 </I><I style="COLOR: #ff0000">processor. </I><EM style="COLOR: #ff0000"> The Linux kernel'version is 2.6.34.6. I've set riohdid=0 on the kernel command line.But </EM><EM style="COLOR: #ff0000">when the OS boots up,the kernel panic as following:</EM></PRE><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><DIV>DP-Lite hash table entries: 512 (order: 2, 16384 bytes) </DIV><DIV>NET: Registered protocol family 1 </DIV><DIV>RPC: Registered udp transport module. </DIV><DIV>RPC: Registered tcp transport module. </DIV><DIV>RPC: Registered tcp NFSv4.1 backchannel transport module. </DIV><DIV>Setting Freescale static PAMU/IOMMU configuration </DIV><DIV>Freescale PowerQUICC MII Bus: probed </DIV><DIV>Setting up RapidIO peer-to-peer network /rapidio@ffe0c0000 </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: Of-device full name /rapidio@ffe0c0000 </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: Regs: [mem 0xffe0c0000-0xffe0dffff] </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: LAW start 0x0000000dc0000000, size 0x0000000002000000. </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: errirq: 16, bellirq: 57, txirq: 60, rxirq 61 </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: RapidIO PHY type: serial </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: Hardware port width: 4 </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: Training connection status: Four-lane </DIV><DIV>fsl-of-rio ffe0c0000.rapidio: RapidIO Common Transport System size: 256 </DIV><DIV>RIO: enumerate master port 0, RIO0 mport </DIV><DIV>Unrecoverable FP Unavailable Exception 801 at deadbeec </DIV><DIV>Oops: Unrecoverable FP Unavailable Exception, sig: 6 [#1] </DIV><DIV>SMP NR_CPUS=8 D0801-AM4140 </DIV><DIV>last sysfs file: </DIV><DIV>Modules linked in: </DIV><DIV>NIP: deadbeec LR: c0495914 CTR: deadbeef </DIV><DIV>REGS: eb073cc0 TRAP: 0801 Not tainted (2.6.34.6) </DIV><DIV>MSR: 00029002 <EE,ME,CE> CR: 24042024 XER: 00000000 </DIV><DIV>TASK = eb05da30[1] 'swapper' THREAD: eb072000 CPU: 6 </DIV><DIV>GPR00: deadbeef eb073d70 eb05da30 eb1fbc00 000000ff 00000000 000000ff 00000000 </DIV><DIV>GPR08: 00000004 eb539640 f1150c20 eb5c0000 24042022 </DIV><DIV>NIP [deadbeec] 0xdeadbeec </DIV><DIV>LR [c0495914] rio_enum_peer+0x1b8/0x3e4 </DIV><DIV>Call Trace: </DIV><DIV>[eb073d70] [c04958e4] rio_enum_peer+0x188/0x3e4 (unreliable) </DIV><DIV>[eb073dd0] [c0495c28] rio_enum_mport+0xe8/0x244 </DIV><DIV>[eb073e10] [c049504c] rio_init_mports+0x90/0xe4 </DIV><DIV>[eb073e30] [c0492648] fsl_of_rio_rpn_probe+0x3c/0x50 </DIV><DIV>[eb073e40] [c03c6a14] of_platform_device_probe+0x58/0x98 </DIV><DIV>[eb073e60] [c02b395c] driver_probe_device+0xa4/0x1b4 [eb073ed0] [c02b2f94] bus_probe_device+0x2c/0x44 </DIV><DIV>[eb073ee0] [c02b0c34] device_add+0x40c/0x4c0 </DIV><DIV>[eb073f30] [c03c6580] of_device_register+0x34/0x48 </DIV><DIV>[eb073f40] [c0009010] of_platform_device_create+0x44/0x74 </DIV><DIV>[eb073f50] [c000923c] of_platform_bus_probe+0x130/0x15c </DIV><DIV>[eb073f70] [c0607d90] declare_of_platform_devices+0x24/0x140 </DIV><DIV>[eb073f90] [c0607ab8] __machine_initcall_d0801_declare_of_platform_devices+0x2c/0x3c</DIV><DIV>[eb073fa0] [c0001dd0] do_one_initcall+0x3c/0x1d0</DIV><DIV>[eb073fd0] [c05fe9ec] kernel_init+0x190/0x230</DIV><DIV>[eb073ff0] [c000f804] kernel_thread+0x4c/0x68</DIV><DIV>Instruction dump:</DIV><DIV>XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX</DIV><DIV>XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX</DIV><DIV>---[ end trace 561bb236c800851f ]---</DIV><DIV>Kernel panic - not syncing: Attempted to kill init!</DIV><DIV>Call Trace:</DIV><DIV>[eb073bc0] [c0007548] show_stack+0x44/0x160 (unreliable)</DIV><DIV>[eb073bf0] [c048e774] panic+0x90/0x104</DIV><DIV>[eb073c40] [c0046b38] do_exit+0x61c/0x668</DIV><DIV>[eb073c90] [c000cf1c] die+0xdc/0x1b8</DIV><DIV>[eb073cb0] [c00100e0] ret_from_except+0x0/0x18</DIV><DIV>[eb073d70] [c04958e4] rio_enum_peer+0x188/0x3e4</DIV><DIV>[eb073dd0] [c0495c28] rio_enum_mport+0xe8/0x244</DIV><DIV>[eb073e10] [c049504c] rio_init_mports+0x90/0xe4</DIV><DIV>[eb073e30] [c0492648] fsl_of_rio_rpn_probe+0x3c/0x50</DIV><DIV>[eb073e40] [c03c6a14] of_platform_device_probe+0x58/0x98</DIV><DIV>[eb073e60] [c02b395c] driver_probe_device+0xa4/0x1b4</DIV><DIV>[eb073e80] [c02b2598] bus_for_each_drv+0x6c/0xa8</DIV><DIV>[eb073eb0] [c02b37e0] device_attach+0xa4/0xc8</DIV><DIV>[eb073ed0] [c02b2f94] bus_probe_device+0x2c/0x44</DIV><DIV>[eb073ee0] [c02b0c34] device_add+0x40c/0x4c0</DIV><DIV>[eb073f30] [c03c6580] of_device_register+0x34/0x48</DIV><DIV>[eb073f40] [c0009010] of_platform_device_create+0x44/0x74</DIV><DIV>[eb073f50] [c000923c] of_platform_bus_probe+0x130/0x15c</DIV><DIV>[eb073f70] [c0607d90] declare_of_platform_devices+0x24/0x140</DIV><DIV>[eb073f90] [c0607ab8] __machine_initcall_d0801_declare_of_platform_devices+0x2c/0x3c</DIV><DIV>[eb073fa0] [c0001dd0] do_one_initcall+0x3c/0x1d0</DIV><DIV>[eb073fd0] [c05fe9ec] kernel_init+0x190/0x230</DIV><DIV>[eb073ff0] [c000f804] kernel_thread+0x4c/0x68</DIV><DIV>ipmi message handler version 39.2</DIV><DIV>could not create IPMI user, error -22</DIV><DIV>Rebooting in 180 seconds..</DIV><DIV> </DIV></PRE><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><EM>I donnot know how to deal with it.Do you have any ideas?</EM></PRE><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><EM>Thanks very much!!</EM></PRE><PRE style="FONT-VARIANT: normal; WHITE-SPACE: pre-wrap; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: normal; COLOR: rgb(0,0,0); FONT-STYLE: normal; WIDOWS: 1; LETTER-SPACING: normal; LINE-HEIGHT: normal; TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><EM></EM> </PRE></DIV>
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