DMA: Out of SW-IOMMU space for 16384 bytes at device 0000:09:02.1 kernel BUG at drivers/scsi/aic7xxx/aic7xxx_osm.c:1468! swapper[0]: bugcheck! 0 [1] Modules linked in: nfs nfsd exportfs lockd auth_rpcgss sunrpc bonding xfs dm_snapshot dm_mirror dm_mod ipv6 capability commoncap psmouse ide_generic ide_disk container button shpchp pci_hotplug tsdev evdev sg ext3 jbd mbcache ide_cd cdrom sd_mod usbhid piix mptspi mptscsih megaraid_mbox generic mptbase uhci_hcd ehci_hcd aic7xxx scsi_transport_spi<3>DMA: Out of SW-IOMMU space for 16384 bytes at device 0000:08:01.1 kernel BUG at drivers/scsi/aic7xxx/aic7xxx_osm.c:1468! megaraid_mm ide_core e1000 scsi_mod usbcore thermal processor fan Pid: 0, CPU 0, comm: swapper psr : 0000101008022018 ifs : 800000000000060f ip : [] Not tainted ip is at ahc_linux_queue+0x990/0x15e0 [aic7xxx] unat: 0000000000000000 pfs : 000000000000060f rsc : 0000000000000003 rnat: 000000000000038a bsps: 0000000000000003 pr : a56911155aa566a7 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f csd : 0000000000000000 ssd : 0000000000000000 b0 : a000000209bfa710 b6 : a000000100261c40 b7 : a000000100261c40 f6 : 1003e00000000000000a0 f7 : 1003e00000000000000a0 f8 : 1003e0000000000000001 f9 : 1003e0000000000000001 f10 : 1003ee4e88743f0129021 f11 : 1003e0000000000000579 r1 : a000000100a80530 r2 : a0000001007a8bc8 r3 : a00000010082e398 r8 : 000000000000003a r9 : 0000000000004000 r10 : a000000100891938 r11 : a000000100891948 r12 : a0000001007afb60 r13 : a0000001007a8000 r14 : 0000000000000104 r15 : a00000010082e398 r16 : a0000001007a8bc8 r17 : a000000100891968 r18 : a00000010089a6d0 r19 : 0000000000004000 r20 : 0000000000000000 r21 : 0000000000004000 r22 : a000000100891930 r23 : a000000100886048 r24 : a000000100891910 r25 : e0000001074d2120 r26 : a0000001007a8bb0 r27 : a0000001007a8ba0 r28 : a0000001007a8bc8 r29 : 0000000000000104 r30 : 0000000000000105 r31 : e0000001074d2170 Call Trace: [] show_stack+0x40/0xa0 sp=a0000001007af730 bsp=a0000001007a9308 [] show_regs+0x840/0x880 sp=a0000001007af900 bsp=a0000001007a92b0 [] die+0x220/0x300 sp=a0000001007af900 bsp=a0000001007a9268 [] die_if_kernel+0x50/0x80 sp=a0000001007af900 bsp=a0000001007a9238 [] ia64_bad_break+0x230/0x420 sp=a0000001007af900 bsp=a0000001007a9210 [] ia64_leave_kernel+0x0/0x280 sp=a0000001007af990 bsp=a0000001007a9210 [] ahc_linux_queue+0x990/0x15e0 [aic7xxx] sp=a0000001007afb60 bsp=a0000001007a9190 [] scsi_dispatch_cmd+0x580/0x720 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a9158 [] scsi_request_fn+0x760/0x9c0 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a9118 [] blk_run_queue+0xd0/0x180 sp=a0000001007afb70 bsp=a0000001007a90f0 [] scsi_run_queue+0x540/0x560 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a9098 [] scsi_next_command+0x60/0xa0 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a9068 [] scsi_end_request+0x210/0x240 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a9020 [] scsi_io_completion+0x320/0x980 [scsi_mod] sp=a0000001007afb70 bsp=a0000001007a8fb0 [] sd_rw_intr+0x660/0x6e0 [sd_mod] sp=a0000001007afb80 bsp=a0000001007a8f38 [] scsi_finish_command+0x140/0x160 [scsi_mod] sp=a0000001007afb90 bsp=a0000001007a8f08 [] scsi_softirq_done+0x290/0x2e0 [scsi_mod] sp=a0000001007afb90 bsp=a0000001007a8ed8 [] blk_done_softirq+0x140/0x1a0 sp=a0000001007afba0 bsp=a0000001007a8ec0 [] __do_softirq+0xf0/0x240 sp=a0000001007afbb0 bsp=a0000001007a8e48 [] do_softirq+0x70/0xc0 sp=a0000001007afbb0 bsp=a0000001007a8de0 [] irq_exit+0x80/0xc0 sp=a0000001007afbb0 bsp=a0000001007a8dc8 [] ia64_handle_irq+0x330/0x360 sp=a0000001007afbb0 bsp=a0000001007a8d98 [] ia64_leave_kernel+0x0/0x280 sp=a0000001007afbb0 bsp=a0000001007a8d98 [] default_idle+0x110/0x180 sp=a0000001007afd80 bsp=a0000001007a8d58 [] cpu_idle+0x210/0x320 sp=a0000001007afe20 bsp=a0000001007a8d28 [] rest_init+0x110/0x140 sp=a0000001007afe20 bsp=a0000001007a8d10 [] start_kernel+0x7d0/0x800 sp=a0000001007afe20 bsp=a0000001007a8c98 [] __kprobes_text_end+0x350/0x370 sp=a0000001007afe30 bsp=a0000001007a8c00 httpd[26351]: bugcheck! 0 [2] Modules linked in: nfs nfsd exportfs lockd auth_rpcgss sunrpc bonding xfs dm_snapshot dm_mirror dm_mod ipv6 capability commoncap psmouse ide_generic ide_disk container button shpchp pci_hotplug tsdev evdev sg ext3 jbd mbcache ide_cd cdrom sd_mod usbhid piix mptspi mptscsih megaraid_mbox generic mptbase uhci_hcd ehci_hcd aic7xxx scsi_transport_spi megaraid_mm ide_core e1000 scsi_mod usbcore thermal processor fan Pid: 26351, CPU 1, comm: httpd psr : 00001010085a2010 ifs : 800000000000060f ip : [] Tainted: G D ip is at ahc_linux_queue+0x990/0x15e0 [aic7xxx] unat: 0000000000000000 pfs : 000000000000060f rsc : 0000000000000003 rnat: 00000000000005b4 bsps: e0000005b310208a pr : 000000004059a595 ldrs: 0000000000000000 ccv : 00000000ffffffff fpsr: 0009804c0270033f csd : 0000000000000000 ssd : 0000000000000000 b0 : a000000209bfa710 b6 : a000000100261320 b7 : a000000209a73880 f6 : 000000000000000000000 f7 : 1003e0000000000000200 f8 : 1003e0000000000000200 f9 : 000000000000000000000 f10 : 000000000000000000000 f11 : 000000000000000000000 r1 : a000000100a80530 r2 : e000000735c00ba0 r3 : 0000000000000003 r8 : 000000000000003a r9 : 0000000000004000 r10 : a0000001009c7768 r11 : 000000000000c3a1 r12 : e000000735c07c30 r13 : e000000735c00000 r14 : 0000000000000000 r15 : e000000735c00bb0 r16 : e000000735c00bc8 r17 : 0000000000000001 r18 : 0000000000010001 r19 : a000000100891948 r20 : fffffffffffffff9 r21 : 000000000007c3a2 r22 : 0000000000000000 r23 : 0000000000004000 r24 : a0000001008903ec r25 : ffffffffffffffff r26 : e000000735c00bb0 r27 : e000000735c00ba0 r28 : e000000735c00bc8 r29 : 0000000000000002 r30 : 0000000000000003 r31 : 0000000000000000 Call Trace: [] show_stack+0x40/0xa0 sp=e000000735c07800 bsp=e000000735c01428 [] show_regs+0x840/0x880 sp=e000000735c079d0 bsp=e000000735c013c8 [] die+0x220/0x300 sp=e000000735c079d0 bsp=e000000735c01380 [] die_if_kernel+0x50/0x80 sp=e000000735c079d0 bsp=e000000735c01350 [] ia64_bad_break+0x230/0x420 sp=e000000735c079d0 bsp=e000000735c01328 [] ia64_leave_kernel+0x0/0x280 sp=e000000735c07a60 bsp=e000000735c01328 [] ahc_linux_queue+0x990/0x15e0 [aic7xxx] sp=e000000735c07c30 bsp=e000000735c012b0 [] scsi_dispatch_cmd+0x580/0x720 [scsi_mod] sp=e000000735c07c40 bsp=e000000735c01278 [] scsi_request_fn+0x760/0x9c0 [scsi_mod] sp=e000000735c07c40 bsp=e000000735c01238 [] __generic_unplug_device+0x90/0xc0 sp=e000000735c07c40 bsp=e000000735c01218 [] generic_unplug_device+0x30/0x60 sp=e000000735c07c40 bsp=e000000735c011e8 [] blk_backing_dev_unplug+0x60/0xa0 sp=e000000735c07c40 bsp=e000000735c011c8 [] block_sync_page+0xe0/0x120 sp=e000000735c07c40 bsp=e000000735c011a8 [] sync_page+0xe0/0x120 sp=e000000735c07c40 bsp=e000000735c01188 [] __wait_on_bit_lock+0xa0/0x180 sp=e000000735c07c40 bsp=e000000735c01140 [] __lock_page+0xc0/0xe0 sp=e000000735c07c40 bsp=e000000735c01120 [] do_generic_mapping_read+0x400/0x820 sp=e000000735c07c80 bsp=e000000735c01088 [] generic_file_aio_read+0x230/0x340 sp=e000000735c07cc0 bsp=e000000735c01030 [] xfs_read+0x540/0x680 [xfs] sp=e000000735c07d00 bsp=e000000735c00f90 [] xfs_file_aio_read+0x120/0x140 [xfs] sp=e000000735c07d10 bsp=e000000735c00f58 [] do_sync_read+0x180/0x200 sp=e000000735c07d10 bsp=e000000735c00f20 [] vfs_read+0x200/0x340 sp=e000000735c07e20 bsp=e000000735c00ed0 [] sys_read+0x70/0xe0 sp=e000000735c07e20 bsp=e000000735c00e58 [] ia64_ret_from_syscall+0x0/0x20 sp=e000000735c07e30 bsp=e000000735c00e58 [] ia64_ivt+0xffffffff00010620/0x400 sp=e000000735c08000 bsp=e000000735c00e58 note: httpd[26351] exited with preempt_count 2