From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.7.12) Gecko/20051203 Description of problem: After starting nash, the computer hangs for about 20 seconds, after which it crashes as below. I have tried adding sleep statements into the "init" script, as in bug #159769, but to no avail. Here're some middle-click results: On the (null-modem serial) console: Unable to handle kernel NULL pointer dereference at virtual address 00000000 printing eip: *pde = 00423001 Oops: 0002 [#1] SMP Modules linked in: aic7xxx scsi_transport_spi sd_mod scsi_mod CPU: 0 EIP: 0060:[<d886092b>] Not tainted VLI EFLAGS: 00010093 (2.6.14-1.1653_FC4smp) EIP is at scsi_eh_done+0x39/0x6b [scsi_mod] eax: d7115800 ebx: d7ec7cc0 ecx: c1307fe0 edx: 00000000 esi: 00000000 edi: d70cb100 ebp: d742ce00 esp: d74aadf4 ds: 007b es: 007b ss: 0068 Process scsi_eh_0 (pid: 330, threadinfo=d74aa000 task=d747c570) Stack: d74aae00 00000001 d7e40070 00000000 d7e40070 d88c60e9 d88bbffb 00000041 00000000 00000002 00000001 d88bf188 418cac6c 00000001 d74aae4c 00000000 02000000 d7420302 00000001 00000041 00a205a0 00000080 00000001 00000002 Call Trace: [<d88c60e9>] ahc_linux_queue_cmd_complete+0x35/0x7e [aic7xxx] [<d88bbffb>] ahc_search_qinfifo+0x205/0x7bb [aic7xxx] [<d88bf188>] ahc_dump_card_state+0x11cc/0x12c4 [aic7xxx] [<d88c6ab3>] ahc_linux_queue_recovery_cmd+0x8a8/0xa52 [aic7xxx] [<c031b401>] __down+0xc8/0x12b [<c011c41e>] default_wake_function+0x0/0xc [<d88c3f71>] ahc_linux_abort+0xe/0x2b [aic7xxx] [<d8860a6b>] scsi_send_eh_cmnd+0x10e/0x1a8 [scsi_mod] [<d8860e33>] scsi_eh_tur+0x8e/0xf9 [scsi_mod] [<c0120b5a>] printk+0x1b/0x1f [<d8860f10>] scsi_eh_abort_cmds+0x72/0xf5 [scsi_mod] [<c031b67c>] _spin_unlock_irq+0x5/0x7 [<c0319bdc>] schedule+0x53c/0xc83 [<d8861bf1>] scsi_unjam_host+0x90/0x1db [scsi_mod] [<d8861d3c>] scsi_error_handler+0x0/0x12e [scsi_mod] [<d8861e33>] scsi_error_handler+0xf7/0x12e [scsi_mod] [<c0133a09>] kthread+0x93/0x97 [<c0133976>] kthread+0x0/0x97 [<c0101d4d>] kernel_thread_helper+0x5/0xb Code: 85 c0 75 05 83 c4 10 5b c3 8b 83 a8 00 00 00 c7 40 3c fe ff 00 00 a1 80 e /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 0 cpu MHz : 334.153 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr bogomips : 669.53 processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 0 cpu MHz : 334.153 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr bogomips : 668.26 lspci: 00:00.0 Host bridge: Intel Corporation 440LX/EX - 82443LX/EX Host bridge (rev 03) 00:01.0 PCI bridge: Intel Corporation 440LX/EX - 82443LX/EX AGP bridge (rev 03) 00:04.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01) 00:04.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01) 00:04.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01) 00:04.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01) 00:06.0 SCSI storage controller: Adaptec AIC-7880U 00:09.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI] 00:0a.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 4 / Voodoo 5 (rev 01) 00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30) 00:0c.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30) Version-Release number of selected component (if applicable): kernel-2.6.14-1.1653_FC4 How reproducible: Always Steps to Reproduce: 1. Install the above-mentioned kernel 2. Reboot 3. Enjoy the crash Actual Results: See above. Expected Results: Normal boot. Additional info:
*** This bug has been marked as a duplicate of 176576 ***