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8f83d76880
A driver needs to be ready to take an interrupt as soon as it registers an interrupt handler. I noticed the following oops when testing kdump: ipr: IBM Power RAID SCSI Device Driver version: 2.5.0 (February 11, 2010) ibmvscsi 30000002: SRP_VERSION: 16.a ibmvscsi 30000002: SRP_VERSION: 16.a Unable to handle kernel paging request for data at address 0x00000000 ... pc: c000000004085e34: .tasklet_action+0xf4/0x1dc ... c000000004086fe4 .__do_softirq+0x16c/0x2c0 c00000000403138c .call_do_softirq+0x14/0x24 c00000000400ee14 .do_softirq+0xa0/0x104 c00000000408690c .irq_exit+0x70/0xd0 c00000000400f190 .do_IRQ+0x214/0x2a8 c000000004004804 hardware_interrupt_entry+0x1c/0x98 --- Exception: 501 (Hardware Interrupt) at c00000000400c544 .raw_local_irq_restore+0x48/0x54 c00000000465d2a8 ._raw_spin_unlock_irqrestore+0x74/0xa0 c0000000040e7f00 .__setup_irq+0x2ec/0x3f0 c0000000040e8198 .request_threaded_irq+0x194/0x22c c00000000446d854 .rpavscsi_init_crq_queue+0x284/0x3f0 c00000000446c764 .ibmvscsi_probe+0x688/0x710 c00000000402903c .vio_bus_probe+0x37c/0x3e4 c000000004403f10 .driver_probe_device+0xec/0x1b8 c000000004404088 .__driver_attach+0xac/0xf4 c000000004403184 .bus_for_each_dev+0x98/0x104 c000000004403c98 .driver_attach+0x40/0x60 c0000000044026f0 .bus_add_driver+0x154/0x324 c0000000044045d0 .driver_register+0xe8/0x1ac c00000000402b2a8 .vio_register_driver+0x54/0x74 c000000004933ea4 .ibmvscsi_module_init+0x80/0xc0 c000000004009834 .do_one_initcall+0x98/0x1d8 c0000000049005b4 .kernel_init+0x27c/0x33c c000000004031550 .kernel_thread+0x54/0x70 srp_task needs to be setup before request_irq. The patch below fixes the oops. Signed-off-by: Anton Blanchard <anton@samba.org> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de> |
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| .. | ||
| aacraid | ||
| aic7xxx | ||
| aic7xxx_old | ||
| aic94xx | ||
| arcmsr | ||
| arm | ||
| be2iscsi | ||
| bfa | ||
| bnx2i | ||
| cxgb3i | ||
| device_handler | ||
| dpt | ||
| fcoe | ||
| fnic | ||
| ibmvscsi | ||
| libfc | ||
| libsas | ||
| lpfc | ||
| megaraid | ||
| mpt2sas | ||
| mvsas | ||
| osd | ||
| pcmcia | ||
| pm8001 | ||
| qla2xxx | ||
| qla4xxx | ||
| sym53c8xx_2 | ||
| .gitignore | ||
| 3w-9xxx.c | ||
| 3w-9xxx.h | ||
| 3w-sas.c | ||
| 3w-sas.h | ||
| 3w-xxxx.c | ||
| 3w-xxxx.h | ||
| 53c700_d.h_shipped | ||
| 53c700.c | ||
| 53c700.h | ||
| 53c700.scr | ||
| a100u2w.c | ||
| a100u2w.h | ||
| a2091.c | ||
| a2091.h | ||
| a3000.c | ||
| a3000.h | ||
| a4000t.c | ||
| advansys.c | ||
| aha152x.c | ||
| aha152x.h | ||
| aha1542.c | ||
| aha1542.h | ||
| aha1740.c | ||
| aha1740.h | ||
| aic7xxx_old.c | ||
| atari_NCR5380.c | ||
| atari_scsi.c | ||
| atari_scsi.h | ||
| atp870u.c | ||
| atp870u.h | ||
| BusLogic.c | ||
| BusLogic.h | ||
| bvme6000_scsi.c | ||
| ch.c | ||
| constants.c | ||
| dc395x.c | ||
| dc395x.h | ||
| dmx3191d.c | ||
| dpt_i2o.c | ||
| dpti.h | ||
| dtc.c | ||
| dtc.h | ||
| eata_generic.h | ||
| eata_pio.c | ||
| eata_pio.h | ||
| eata.c | ||
| esp_scsi.c | ||
| esp_scsi.h | ||
| fd_mcs.c | ||
| fdomain.c | ||
| fdomain.h | ||
| FlashPoint.c | ||
| g_NCR5380_mmio.c | ||
| g_NCR5380.c | ||
| g_NCR5380.h | ||
| gdth_ioctl.h | ||
| gdth_proc.c | ||
| gdth_proc.h | ||
| gdth.c | ||
| gdth.h | ||
| gvp11.c | ||
| gvp11.h | ||
| hosts.c | ||
| hpsa_cmd.h | ||
| hpsa.c | ||
| hpsa.h | ||
| hptiop.c | ||
| hptiop.h | ||
| ibmmca.c | ||
| imm.c | ||
| imm.h | ||
| in2000.c | ||
| in2000.h | ||
| initio.c | ||
| initio.h | ||
| ipr.c | ||
| ipr.h | ||
| ips.c | ||
| ips.h | ||
| iscsi_tcp.c | ||
| iscsi_tcp.h | ||
| jazz_esp.c | ||
| Kconfig | ||
| lasi700.c | ||
| libiscsi_tcp.c | ||
| libiscsi.c | ||
| libsrp.c | ||
| mac53c94.c | ||
| mac53c94.h | ||
| mac_esp.c | ||
| mac_scsi.c | ||
| mac_scsi.h | ||
| Makefile | ||
| megaraid.c | ||
| megaraid.h | ||
| mesh.c | ||
| mesh.h | ||
| mvme16x_scsi.c | ||
| mvme147.c | ||
| mvme147.h | ||
| ncr53c8xx.c | ||
| ncr53c8xx.h | ||
| NCR53c406a.c | ||
| NCR5380.c | ||
| NCR5380.h | ||
| NCR_D700.c | ||
| NCR_D700.h | ||
| NCR_Q720.c | ||
| NCR_Q720.h | ||
| nsp32_debug.c | ||
| nsp32_io.h | ||
| nsp32.c | ||
| nsp32.h | ||
| osst_detect.h | ||
| osst_options.h | ||
| osst.c | ||
| osst.h | ||
| pas16.c | ||
| pas16.h | ||
| pmcraid.c | ||
| pmcraid.h | ||
| ppa.c | ||
| ppa.h | ||
| ps3rom.c | ||
| qla1280.c | ||
| qla1280.h | ||
| qlogicfas408.c | ||
| qlogicfas408.h | ||
| qlogicfas.c | ||
| qlogicpti.c | ||
| qlogicpti.h | ||
| raid_class.c | ||
| script_asm.pl | ||
| scsi_debug.c | ||
| scsi_devinfo.c | ||
| scsi_error.c | ||
| scsi_ioctl.c | ||
| scsi_lib_dma.c | ||
| scsi_lib.c | ||
| scsi_logging.h | ||
| scsi_module.c | ||
| scsi_netlink.c | ||
| scsi_priv.h | ||
| scsi_proc.c | ||
| scsi_sas_internal.h | ||
| scsi_scan.c | ||
| scsi_sysctl.c | ||
| scsi_sysfs.c | ||
| scsi_tgt_if.c | ||
| scsi_tgt_lib.c | ||
| scsi_tgt_priv.h | ||
| scsi_trace.c | ||
| scsi_transport_api.h | ||
| scsi_transport_fc_internal.h | ||
| scsi_transport_fc.c | ||
| scsi_transport_iscsi.c | ||
| scsi_transport_sas.c | ||
| scsi_transport_spi.c | ||
| scsi_transport_srp_internal.h | ||
| scsi_transport_srp.c | ||
| scsi_typedefs.h | ||
| scsi_wait_scan.c | ||
| scsi.c | ||
| scsi.h | ||
| scsicam.c | ||
| sd_dif.c | ||
| sd.c | ||
| sd.h | ||
| ses.c | ||
| sg.c | ||
| sgiwd93.c | ||
| sim710.c | ||
| sni_53c710.c | ||
| sr_ioctl.c | ||
| sr_vendor.c | ||
| sr.c | ||
| sr.h | ||
| st_options.h | ||
| st.c | ||
| st.h | ||
| stex.c | ||
| sun3_NCR5380.c | ||
| sun3_scsi_vme.c | ||
| sun3_scsi.c | ||
| sun3_scsi.h | ||
| sun3x_esp.c | ||
| sun_esp.c | ||
| sym53c416.c | ||
| sym53c416.h | ||
| t128.c | ||
| t128.h | ||
| tmscsim.c | ||
| tmscsim.h | ||
| u14-34f.c | ||
| ultrastor.c | ||
| ultrastor.h | ||
| vmw_pvscsi.c | ||
| vmw_pvscsi.h | ||
| wd33c93.c | ||
| wd33c93.h | ||
| wd7000.c | ||
| zalon.c | ||
| zorro7xx.c | ||