On Thu, 2005-04-14 at 12:29 -0400, James.Smart@xxxxxxxxxx wrote:
In testing with 2.6.12-rc1 and -rc2, we've been encountering an issue on SMP machines with the loading of scsi_mod and sd_mod modules. The sd_mod load fails with unresolved symbols. It appears to be a race condition based on how quickly the modules load. This works fine on uni systems and on 2.6.11.
Evidently, this problem has been before and is resolved by a short delay between module loads. http://seclists.org/lists/linux-kernel/2005/Apr/0383.html
BTW. I haven't had time to debug this any further myself, but for me adding a one second delay between module loads DOES NOT WORK for me.
Given it's been around for 2 -rc itterations, I expect it needed some highlighting.
Ah, so it is not just me (thought I was going crazy -- couldn't get a kernel to boot on my SMP system):
Mounting sysfs Creating /dev Starting udev Loading scsi_modSCSI subsystem initialized .ko module LoadFusion MPT base driver 3.01.20 ing sd_mod.ko momptscsih: Unknown symbol mpt_deregister mptscsih: Unknown symbol mpt_reset_deregister mptscsih: Unknown symbol mpt_config mptscsih: Unknown symbol mpt_device_driver_deregister mptscsih: Unknown symbol mpt_free_msg_frame mptscsih: Unknown symbol scsi_remove_host mptscsih: Unknown symbol mpt_print_ioc_summary mptscsih: Unknown symbol mpt_GetIocState mptscsih: Unknown symbol mpt_put_msg_frame mptscsih: Unknown symbol mpt_register mptscsih: Unknown symbol mpt_add_sge mptscsih: Unknown symbol mpt_event_deregister mptscsih: Unknown symbol scsi_host_put mptscsih: Unknown symbol mpt_read_ioc_pg_3 mptscsih: Unknown symbol scsi_scan_host mptscsih: Unknown symbol mpt_event_register mptscsih: Unknown symbol mpt_send_handshake_request mptscsih: Unknown symbol scsi_add_host mptscsih: Unknown symbol mpt_device_driver_register mptscsih: Unknown symbol scsi_adjust_queue_depth mptscsih: Unknown symbol mpt_get_msg_frame mptscsih: Unknown symbol mpt_reset_register mptscsih: Unknown symbol mpt_HardResetHandler mptscsih: Unknown symbol scsi_host_alloc mptscsih: Unknown symbol ioc_list dule Loading mpinput: ImPS/2 Generic Wheel Mouse on isa0060/serio1 sd_mod: Unknown symbol scsi_device_get sd_mod: Unknown symbol scsi_wait_req sd_mod: Unknown symbol scsi_get_sense_info_fld sd_mod: Unknown symbol scsicam_bios_param sd_mod: Unknown symbol scsi_command_normalize_sense sd_mod: Unknown symbol scsi_test_unit_ready sd_mod: Unknown symbol scsi_block_when_processing_errors sd_mod: Unknown symbol scsi_register_driver sd_mod: Unknown symbol scsi_ioctl sd_mod: Unknown symbol scsi_nonblockable_ioctl sd_mod: Unknown symbol scsi_device_put sd_mod: Unknown symbol scsi_request_normalize_sense sd_mod: Unknown symbol __scsi_mode_sense sd_mod: Unknown symbol scsi_logging_level sd_mod: Unknown symbol scsi_print_req_sense sd_mod: Unknown symbol scsi_release_request sd_mod: Unknown symbol scsi_print_sense sd_mod: Unknown symbol scsi_allocate_request sd_mod: Unknown symbol scsi_io_completion sd_mod: Unknown symbol scsi_set_medium_removal
Loading mptscsiCopyright (c) 1999-2004 LSI Logic Corporation h.ko module LoaACPI: PCI Interrupt 0000:05:05.0[A] -> ding dm-mod.ko mGSI 72 (level, low) -> IRQ 185 odule Loading jmptbase: Initiating ioc0 bringup bd.ko module Lodevice-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@xxxxxxxxxx ading ext3.ko moext3: Unknown symbol journal_force_commit dule insmod: erext3: Unknown symbol journal_dirty_data ror inserting '/<ex0>tK3e:r Unenkl npowann iscy -m bonlo t jsouynrncailn_gf: oArctete_mcopmtemdit t_no eskitledl iniext!t3 Unknown symbol journal_init_dev
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