Hi Tejun, I am using various PCIe card based on Silicon Image 3124/3132 to test my PCIe host. This card is working with most of my host controler. I use sata_sil24 driver to enable the card, with one modification of commenting line [pcie_set_readrq(pdev, 4096);] I had sent a patch for it , which is still unanswered. http://comments.gmane.org/gmane.linux.kernel.pci/10300 Anyway, this mail is regarding another issue. I am still having problem when I use above driver (with above patch), in following situation. My SOC is having cortex-a9 dual core. When I work with CPU freq 500 MHz, it works well. But with 600 MHz it crashes. Crash log is at the end of mail. I did further debugging. I found that if I put some delay after calling of sil24_init_controller(host); in function sil24_init_one, it works well. My question is. does sil24_init_controller insure perfact initilization? or we missing to check some status register which might be needed before ata_host_activate. Regards Pratyush Crash Log: ---------------------------------------------------------------------------------------------------------------- Modules linked in: CPU: 0 Not tainted (2.6.37-lsp-3.2.2-rc-dirty #7) PC is at sil24_scr_read+0x38/0x50 LR is at sil24_port_base+0x14/0x2c pc : [<80255e10>] lr : [<80255d44>] psr: 80000013 sp : be841d10 ip : be841cf8 fp : be841d24 r10: be839810 r9 : 00000080 r8 : be934000 r7 : 00000000 r6 : 00000002 r5 : be9354bc r4 : 00000002 r3 : 00000000 r2 : be9354bc r1 : 00000002 r0 : bf9c1f00 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: 0000404a DAC: 00000017 Process swapper (pid: 1, stack limit = 0xbe8402f0) Stack: (0xbe841d10 to 0xbe842000) 1d00: be9353b0 be9354bc be841d44 be841d28 1d20: 8023e498 80255de4 00000006 be9353b0 00000000 be839810 be841d7c be841d48 1d40: 80244514 8023e464 be841d7c be841d58 80248d28 be839810 00000000 be839810 1d60: 00000000 be934000 00000080 be839810 be841dbc be841d80 802447c8 80244500 1d80: be9354d0 000001af be841db0 be841d98 80249a64 be839810 000001af 80524ad8 1da0: 00000001 be839818 00000080 be87d860 be841dfc be841dc0 8024499c 802446ac 1dc0: 00000080 8049960f be839810 801b0488 80244c44 be87d800 be87d860 be94d650 1de0: be839810 802563fc 00000000 00000000 be841e4c be841e00 80256558 802448e0 1e00: 80524ad8 80110e10 80524a58 000e048e 00000000 0000001f 00000007 0000003f 1e20: 80524d3c 00000000 be841e0c 00000000 be87d800 be87d860 80524a58 00000000 1e40: be841e5c be841e50 801b5ce4 80256408 be841e94 be841e60 801b6c0c 801b5ccc 1e60: 801118bc 80524a58 be87d800 803db4b0 8020e900 be87d860 be87d860 80524a88 1e80: 80524a88 00000000 be841eb4 be841e98 8020ebbc 801b6bac be87d860 be87d894 1ea0: 80524a88 00000000 be841ed4 be841eb8 8020ecd4 8020eb18 8020ec6c 80524a88 1ec0: 8020ec6c 00000000 be841efc be841ed8 8020ddb0 8020ec78 be863108 be8995e0 1ee0: 8019bc38 80524a88 be8316c0 80513db8 be841f0c be841f00 8020e894 8020dd68 1f00: be841f3c be841f10 8020e4bc 8020e880 8049960f be841f20 80524a88 80513db8 1f20: 80562a54 80524a88 00000000 00000000 be841f6c be841f40 8020f158 8020e414 1f40: 80524acc 80524a58 80513db8 80562a54 80524a88 00000000 00000000 00000000 1f60: be841f8c be841f70 801b6e94 8020f0b4 8002ad08 804f5bc0 80562a54 80021f18 1f80: be841f9c be841f90 80021f34 801b6e50 be841fd4 be841fa0 80035698 80021f24 1fa0: 804f5bc0 80562a54 be841fd4 be841fb8 8009490c 8002ad08 804f5bc0 80562a54 1fc0: 00000013 00000000 be841ff4 be841fd8 80008b5c 800355e4 00000000 00000000 1fe0: 80008a08 8005fcfc 00000000 be841ff8 8005fcfc 80008a14 2194c965 c26a40a0 Backtrace: [<80255dd8>] (sil24_scr_read+0x0/0x50) from [<8023e498>] (sata_scr_read+0x40/0x4c) r5:be9354bc r4:be9353b0 [<8023e458>] (sata_scr_read+0x0/0x4c) from [<80244514>] (sata_link_init_spd+0x20/0x1ac) r6:be839810 r5:00000000 r4:be9353b0 r3:00000006 [<802444f4>] (sata_link_init_spd+0x0/0x1ac) from [<802447c8>] (ata_host_register+0x128/0x234) [<802446a0>] (ata_host_register+0x0/0x234) from [<8024499c>] (ata_host_activate+0xc8/0xf4) [<802448d4>] (ata_host_activate+0x0/0xf4) from [<80256558>] (sil24_init_one+0x15c/0x1a8) [<802563fc>] (sil24_init_one+0x0/0x1a8) from [<801b5ce4>] (local_pci_probe+0x24/0x28) r7:00000000 r6:80524a58 r5:be87d860 r4:be87d800 [<801b5cc0>] (local_pci_probe+0x0/0x28) from [<801b6c0c>] (pci_device_probe+0x6c/0x98) [<801b6ba0>] (pci_device_probe+0x0/0x98) from [<8020ebbc>] (driver_probe_device+0xb0/0x160) r8:00000000 r7:80524a88 r6:80524a88 r5:be87d860 r4:be87d860 [<8020eb0c>] (driver_probe_device+0x0/0x160) from [<8020ecd4>] (__driver_attach+0x68/0x8c) r7:00000000 r6:80524a88 r5:be87d894 r4:be87d860 [<8020ec6c>] (__driver_attach+0x0/0x8c) from [<8020ddb0>] (bus_for_each_dev+0x54/0x84) r6:00000000 r5:8020ec6c r4:80524a88 r3:8020ec6c [<8020dd5c>] (bus_for_each_dev+0x0/0x84) from [<8020e894>] (driver_attach+0x20/0x28) r6:80513db8 r5:be8316c0 r4:80524a88 [<8020e874>] (driver_attach+0x0/0x28) from [<8020e4bc>] (bus_add_driver+0xb4/0x234) [<8020e408>] (bus_add_driver+0x0/0x234) from [<8020f158>] (driver_register+0xb0/0x138) [<8020f0a8>] (driver_register+0x0/0x138) from [<801b6e94>] (__pci_register_driver+0x50/0xcc) [<801b6e44>] (__pci_register_driver+0x0/0xcc) from [<80021f34>] (sil24_init+0x1c/0x28) r7:80021f18 r6:80562a54 r5:804f5bc0 r4:8002ad08 [<80021f18>] (sil24_init+0x0/0x28) from [<80035698>] (do_one_initcall+0xc0/0x194) [<800355d8>] (do_one_initcall+0x0/0x194) from [<80008b5c>] (kernel_init+0x154/0x21c) r8:00000000 r7:00000013 r6:80562a54 r5:804f5bc0 r4:8002ad08 [<80008a08>] (kernel_init+0x0/0x21c) from [<8005fcfc>] (do_exit+0x0/0x5f8) r6:8005fcfc r5:80008a08 r4:00000000 r3:00000000 Code: e2800c1f e7933104 e7903103 f57ff05f (e3a00000) ---[ end trace 98e8e27f91855523 ]--- Kernel panic - not syncing: Attempted to kill init! Backtrace: [<8003e9fc>] (dump_backtrace+0x0/0x10c) from [<803bd99c>] (dump_stack+0x18/0x1c) r6:be83c000 r5:8050e0b0 r4:80542150 r3:60000113 [<803bd984>] (dump_stack+0x0/0x1c) from [<803bd9fc>] (panic+0x5c/0x17c) [<803bd9a0>] (panic+0x0/0x17c) from [<8005fd64>] (do_exit+0x68/0x5f8) r3:8050e0b0 r2:00000000 r1:00000001 r0:80473617 r7:00000000 [<8005fcfc>] (do_exit+0x0/0x5f8) from [<8003ee5c>] (die+0x2a0/0x2e0) r7:00000000 [<8003ebbc>] (die+0x0/0x2e0) from [<8003eef0>] (arm_notify_die+0x54/0x58) [<8003ee9c>] (arm_notify_die+0x0/0x58) from [<80035428>] (do_DataAbort+0x8c/0xa0) [<8003539c>] (do_DataAbort+0x0/0xa0) from [<8003a6cc>] (__dabt_svc+0x4c/0x60) Exception stack(0xbe841cc8 to 0xbe841d10) 1cc0: bf9c1f00 00000002 be9354bc 00000000 00000002 be9354bc 1ce0: 00000002 00000000 be934000 00000080 be839810 be841d24 be841cf8 be841d10 1d00: 80255d44 80255e10 80000013 ffffffff r8:be934000 r7:00000000 r6:00000002 r5:be841cfc r4:ffffffff [<80255dd8>] (sil24_scr_read+0x0/0x50) from [<8023e498>] (sata_scr_read+0x40/0x4c) r5:be9354bc r4:be9353b0 [<8023e458>] (sata_scr_read+0x0/0x4c) from [<80244514>] (sata_link_init_spd+0x20/0x1ac) r6:be839810 r5:00000000 r4:be9353b0 r3:00000006 [<802444f4>] (sata_link_init_spd+0x0/0x1ac) from [<802447c8>] (ata_host_register+0x128/0x234) [<802446a0>] (ata_host_register+0x0/0x234) from [<8024499c>] (ata_host_activate+0xc8/0xf4) [<802448d4>] (ata_host_activate+0x0/0xf4) from [<80256558>] (sil24_init_one+0x15c/0x1a8) [<802563fc>] (sil24_init_one+0x0/0x1a8) from [<801b5ce4>] (local_pci_probe+0x24/0x28) r7:00000000 r6:80524a58 r5:be87d860 r4:be87d800 [<801b5cc0>] (local_pci_probe+0x0/0x28) from [<801b6c0c>] (pci_device_probe+0x6c/0x98) [<801b6ba0>] (pci_device_probe+0x0/0x98) from [<8020ebbc>] (driver_probe_device+0xb0/0x160) r8:00000000 r7:80524a88 r6:80524a88 r5:be87d860 r4:be87d860 [<8020eb0c>] (driver_probe_device+0x0/0x160) from [<8020ecd4>] (__driver_attach+0x68/0x8c) r7:00000000 r6:80524a88 r5:be87d894 r4:be87d860 [<8020ec6c>] (__driver_attach+0x0/0x8c) from [<8020ddb0>] (bus_for_each_dev+0x54/0x84) r6:00000000 r5:8020ec6c r4:80524a88 r3:8020ec6c [<8020dd5c>] (bus_for_each_dev+0x0/0x84) from [<8020e894>] (driver_attach+0x20/0x28) r6:80513db8 r5:be8316c0 r4:80524a88 [<8020e874>] (driver_attach+0x0/0x28) from [<8020e4bc>] (bus_add_driver+0xb4/0x234) [<8020e408>] (bus_add_driver+0x0/0x234) from [<8020f158>] (driver_register+0xb0/0x138) [<8020f0a8>] (driver_register+0x0/0x138) from [<801b6e94>] (__pci_register_driver+0x50/0xcc) [<801b6e44>] (__pci_register_driver+0x0/0xcc) from [<80021f34>] (sil24_init+0x1c/0x28) r7:80021f18 r6:80562a54 r5:804f5bc0 r4:8002ad08 [<80021f18>] (sil24_init+0x0/0x28) from [<80035698>] (do_one_initcall+0xc0/0x194) [<800355d8>] (do_one_initcall+0x0/0x194) from [<80008b5c>] (kernel_init+0x154/0x21c) r8:00000000 r7:00000013 r6:80562a54 r5:804f5bc0 r4:8002ad08 [<80008a08>] (kernel_init+0x0/0x21c) from [<8005fcfc>] (do_exit+0x0/0x5f8) r6:8005fcfc r5:80008a08 r4:00000000 r3:00000000 CPU1: stopping Backtrace: [<8003e9fc>] (dump_backtrace+0x0/0x10c) from [<803bd99c>] (dump_stack+0x18/0x1c) r6:800338b4 r5:80567748 r4:00000000 r3:60000193 [<803bd984>] (dump_stack+0x0/0x1c) from [<80035338>] (do_IPI+0xac/0x110) [<8003528c>] (do_IPI+0x0/0x110) from [<8003a714>] (__irq_svc+0x34/0xc0) Exception stack(0xbe859f70 to 0xbe859fb8) 9f60: be859f88 00000000 be859fb8 00000000 9f80: 8050f564 00000001 be858000 80540940 00000000 412fc091 00000000 be859fc4 9fa0: be859fc8 be859fb8 8003bdc4 8003bdc8 60000013 ffffffff r7:80540940 r6:00000006 r5:fec80100 r4:ffffffff [<8003bd9c>] (default_idle+0x0/0x30) from [<8003bf98>] (cpu_idle+0x70/0xbc) [<8003bf28>] (cpu_idle+0x0/0xbc) from [<803bb1bc>] (secondary_start_kernel+0x100/0x110) [<803bb0bc>] (secondary_start_kernel+0x0/0x110) from [<003bab8c>] (0x3bab8c) r6:10c03c7d r5:0000001f r4:3e85c06a r3:803bab74 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
