I have tried to set this up but have run into a problem probably due to my error. It has been a while since I have had to build kernels... I pulled 2.6.31-rc1, applied the two patches below and then applied the 3 patches for the interface. The new kernel loads fine but when a trespass command is sent I get an panic. I am looking though how I built the kernel and perhaps build with your 3 patches to see if it happened before. Here is the data: Jul 2 14:57:57 bullwinkle kernel: kernel BUG at block/cfq-iosched.c:2273! Jul 2 14:57:57 bullwinkle kernel: invalid opcode: 0000 [#1] SMP Jul 2 14:57:57 bullwinkle kernel: last sysfs file: /sys/kernel/uevent_seqnum Jul 2 14:57:57 bullwinkle kernel: CPU 1 Jul 2 14:57:57 bullwinkle kernel: Modules linked in: scsi_dh_emc dm_round_robin dm_multipath scsi_dh microcode fuse loop dm_mod i5k_amb iTCO_wdt iTCO_vendor_support i2c_i801 ibmpex i5000_edac ses rtc_cmos ibmaem bnx2 ipmi_msghandler sr_mod rtc_core enclosure i2c_core pcspkr edac_core cdrom serio_raw rtc_lib joydev shpchp pci_hotplug button sg usbhid hid uhci_hcd ehci_hcd usbcore sd_mod crc_t10dif edd ext3 mbcache jbd fan ide_pci_generic ide_core ata_generic ata_piix libata lpfc scsi_transport_fc scsi_tgt aacraid scsi_mod thermal processor thermal_sys hwmon Jul 2 14:57:57 bullwinkle kernel: Pid: 4509, comm: kmpath_handlerd Tainted: G W 2.6.31-rc1-0.1-default #1 IBM System x3650 -[7979A2U]- Jul 2 14:57:57 bullwinkle kernel: RIP: 0010:[<ffffffff81174b36>] [<ffffffff81174b36>] cfq_put_request+0x29/0x67 Jul 2 14:57:57 bullwinkle kernel: RSP: 0018:ffff8804a5ce1c70 EFLAGS: 00010046 Jul 2 14:57:57 bullwinkle kernel: RAX: 0000000000000000 RBX: ffff88049ec891f0 RCX: 0000000000000579 Jul 2 14:57:57 bullwinkle kernel: RDX: 0000000000000019 RSI: ffff88049ec891f0 RDI: ffff88049ec891f0 Jul 2 14:57:57 bullwinkle kernel: RBP: ffff8804a5ce1c80 R08: ffff8804a5ce0000 R09: 0000000000000000 Jul 2 14:57:57 bullwinkle kernel: R10: ffffffffa002bb0d R11: 0000000000000000 R12: ffff8804a356a5d0 Jul 2 14:57:57 bullwinkle kernel: R13: ffff8804a54d6b08 R14: ffff8804a5052400 R15: ffff8804a5052400 Jul 2 14:57:57 bullwinkle kernel: FS: 0000000000000000(0000) GS:ffff880028050000(0000) knlGS:0000000000000000 Jul 2 14:57:57 bullwinkle kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Jul 2 14:57:57 bullwinkle kernel: CR2: 0000000000617b48 CR3: 0000000492c72000 CR4: 00000000000006e0 Jul 2 14:57:57 bullwinkle kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 2 14:57:57 bullwinkle kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 2 14:57:57 bullwinkle kernel: Process kmpath_handlerd (pid: 4509, threadinfo ffff8804a5ce0000, task ffff8804a4d2a100) Jul 2 14:57:57 bullwinkle kernel: Stack: Jul 2 14:57:57 bullwinkle kernel: ffff88049ec891f0 0000000001282c4f ffff8804a5ce1c90 ffffffff811615f7 Jul 2 14:57:57 bullwinkle kernel: <0> ffff8804a5ce1cc0 ffffffff81166d45 0000000000000055 ffff8804a54d6b08 Jul 2 14:57:57 bullwinkle kernel: <0> ffff88049ec891f0 0000000000000282 ffff8804a5ce1cf0 ffffffff81167272 Jul 2 14:57:57 bullwinkle kernel: Call Trace: Jul 2 14:57:57 bullwinkle kernel: [<ffffffff811615f7>] elv_put_request +0x19/0x1b Jul 2 14:57:57 bullwinkle kernel: [<ffffffff81166d45>] __blk_put_request+0x87/0xbd Jul 2 14:57:57 bullwinkle kernel: [<ffffffff81167272>] blk_put_request +0x2e/0x45 Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02dd52a>] send_trespass_cmd+0x250/0x262 [scsi_dh_emc] Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02dd573>] ? clariion_send_inquiry+0x37/0x200 [scsi_dh_emc] Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02dd88e>] clariion_activate+0x4d/0x131 [scsi_dh_emc] Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02b37e4>] scsi_dh_activate+0x87/0xa4 [scsi_dh] Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02d81d3>] activate_path +0x32/0x151 [dm_multipath] Jul 2 14:57:57 bullwinkle kernel: [<ffffffff81054424>] worker_thread +0x172/0x20c Jul 2 14:57:57 bullwinkle kernel: [<ffffffffa02d81a1>] ? activate_path +0x0/0x151 [dm_multipath] Jul 2 14:57:57 bullwinkle kernel: [<ffffffff81058774>] ? autoremove_wake_function+0x0/0x38 Jul 2 14:57:57 bullwinkle kernel: [<ffffffff810542b2>] ? worker_thread +0x0/0x20c Jul 2 14:57:57 bullwinkle kernel: [<ffffffff81058406>] kthread +0x88/0x90 Jul 2 14:57:57 bullwinkle kernel: [<ffffffff8100ca3a>] child_rip +0xa/0x20 Jul 2 14:57:57 bullwinkle kernel: [<ffffffff8105837e>] ? kthread +0x0/0x90 Jul 2 14:57:57 bullwinkle kernel: [<ffffffff8100ca30>] ? child_rip +0x0/0x20 Jul 2 14:57:57 bullwinkle kernel: Code: c9 c3 55 48 89 e5 41 54 53 4c 8b a7 a8 00 00 00 48 89 fb 4d 85 e4 74 4c 8b 47 48 83 e0 01 48 8d 50 18 41 8b 44 94 08 85 c0 75 04 <0f> 0b eb fe ff c8 41 89 44 94 08 48 8b 87 a0 00 00 00 48 8b 78 Jul 2 14:57:57 bullwinkle kernel: RIP [<ffffffff81174b36>] cfq_put_request+0x29/0x67 Jul 2 14:57:57 bullwinkle kernel: RSP <ffff8804a5ce1c70> Jul 2 14:57:57 bullwinkle kernel: ---[ end trace 4eaa2a86a8e2da24 ]--- On Wed, 2009-07-01 at 20:13 -0700, Chandra Seetharaman wrote: > Hello, > > Last week, Eddie Williams reported a regression w.r.t scsi_dh > (http://www.redhat.com/archives/dm-devel/2009-June/msg00285.html). > Parameter setting part of dm multipath handler has been removed > when we moved to scsi device handler. > > This set of patches adds an new interface to scsi_dh and uses it. > > This patch set applies on 2.6.31-rc1 and the following 2 patches: > (1) http://patchwork.kernel.org/patch/32646/raw/ > (2) http://patchwork.kernel.org/patch/32647/raw/ > > This interface part of the patch has been tested. > > Eddie, > > If you can test it on an EMC storage and respond with your > findings it will be of great help. > > Thanks, > > chandra > > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
