Bug 13936 - Megaraid_mbox kernel panic at initialization
Summary: Megaraid_mbox kernel panic at initialization
Status: CLOSED OBSOLETE
Alias: None
Product: SCSI Drivers
Classification: Unclassified
Component: Other (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: scsi_drivers-other
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-08-08 22:53 UTC by Joe Feise
Modified: 2012-06-13 14:44 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.29.6
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Joe Feise 2009-08-08 22:53:43 UTC 

    


    


      



        
          Comment 1
        

        
          Joe Feise

        

        
        

        
          2009-08-08 22:56:54 UTC
        

      






Slackware 12.2, using kernel 2.6.29.6
causes a kernel panic when udev initializes the SCSI devices.
Call Trace:
[<c012e307>] tasklet_action+0x85/0x10d
[<c012dde9>] __do_softirq+0x8f/0x12a
[<c01139ba>] ack_apic_level+0x5b/0x1ae
[<c012dedb>] do_softirq+0x57/0x59
[<c012e0b7>] irq_exit+0x43/0x45
[<c0104b17>] do_IRQ+0x61/0xba
[<c0167d56>] shmem_get_iode+0xa1/0x199
[<c05a75f3>] _spin_lock+0x14/0x17
[<c01037a7>] common_interrupt+0x27/0x2c
[<c01900d8>] fifo_open+0xda/0x212
[<c017efaf>] kmem_cache_free+0x3a/0x54
[<c018c3b2>] sys_mkdirat+0xa8/0xd0
[<c018c3f9>] sys_kndir+0x1f/0x23
[<c0103222>] syscall_call+0x7/0xb
Code: 0f b6 82 4c 46 00 00 d3 f8 a8 01 0f 84 cd fe ff ff 8b 44 24 34 8b 70 34 8b
 06 83 e0 fc 0f 84 68 01 00 00 e8 37 eb cf ff 8b 56 04 <f6> 04 10 1f 0f 85 a9 fe
 ff ff 0f b7 4b 24 0f b7 43 26 c1 e1 04
EIP: [<c046d1b9>] megaraid_mbox_dpc+0x24d/0x561 SS:ESP 0068:f59e1e00
---[ end trace bd6fcd56a304a4d0 ]---
Kernel panic - not syncing: Fatal exception in interrupt

The same kernel worked with Slackware 12.0.
The environment:
- Kernel 2.6.29.6, megaraid_mm and megaraid_mbox in the kernel (not modules,
since I boot from the raid disk.)
- Distribution: Slackware 12.2
- LSI Megaraid 320-2 2-channel SCSI RAID PCI card, firmware 1L49
- Attached to channel 1: 1 RAID 1, 1 RAID 0 disks
- Attached to channel 2: 1 DVD drive using a SCSI-to-IDE adapter
- Megaraid boot option: unconf_disks=1
- udevd version 135

It works when I don't start udev.

    


    


      



        
          Comment 2
        

        
          Joe Feise

        

        
        

        
          2009-08-08 22:59:44 UTC
        

      






Similar to 11194, but triggered by udev.

    



  






  


    

      

        

          
            

              Note
              You need to
              log in
              before you can comment on or make changes to this bug.