i have found an kernel panic error when i'm booting in rhel 5

[<c0424a21>] printk+0*18/0*8e
[<c04e964f>] vsnprintf+0*41f/0*45d
[<f8a207d0>] cnxt_event_handler+0*0/0*2f0[hsfserial]
[<f8a8f388>] cnxthwpci_probe+0*1a8/0*2f0[hsfpcibasic2]
[<c05534eb>] __driver_ attach+0*0/0*6b
[<c04f26ec>] pci_device_probe+0*36/0*57
[<c055343e>] driver_probe_device+0*42/0*92
{<co55352f>] __driver_attach+0*44/0*6b
[<c0552e69>] bus_for_each_dev+0*37/0*59
[<co553389>] driver_attach+0*11/0*13
[<c05534eb>] __driver_attach+0*0/0*6b
[<co552b71>] bus_add_driver+0*64/0*fd
[<c04f2811>] __pci_register_driver+0*3e/0*58
[<c043d05c>] sys_init_module+0*1c95
[<f8a59000>] alsa_card_azx_init+0*0/0*f[snd_hda_intel]
[<f8a08440>] cnxthsf_ospcireadconfigw+0*0/0*20[hsf0sspec]
[<c04731ae>] sys_read+0*3c/0*63
[<c0404f17>] syscall_call+0*7/0*b

-------------------------
-------------------------

code: 55 b8 01 00 00 00 89 e5 5d c3 8d b6 00 00 00 00 55 89 e5 53 83 ec 0c 8b 4d

0c 8b 55 08 81 69 84 01 00 00 74 0f 8b 82 98 02 00 00 <8b> 04 08 83 c4 0c 5b 5d

c3 8b 82 c8 01 00 00 f6 40 01 04 74 e5


EIP: [<f8991d6b>] hsfpcibasic2134_+0*1b/0*70 [hsfpcibasic2] ss:ESP 0068:f2e64b8c

<0> Kernel Panic - not synching : Fatal Exception


please tell how to troubleshoot this type of problems

- Check if your hardware is supported as per the vendors HCL,
- Check if you're running the most recent supported kernel and userland for your distribution,
- Check if your software and setup isn't tainted, meaning you don't run and haven't loaded anything that's not or no longer supported, experimental or outright exotic,
- Try to boot in the most basic configuration and per reboot and stress test add components, software or services until you can reproduce the error,
* And always use and post the complete OOPS.

- Check Bugzilla for (seemingly) related bugs,
- Check the LKML for (seemingly) related bugs,
* If you've got a support contract then now would be the time to use it.