On Saturday 07 December 2013 01:00:27 Sebastian Reichel wrote: > On Fri, Dec 06, 2013 at 02:27:25PM -0800, Tony Lindgren wrote: > > * Sebastian Reichel <sre@xxxxxxxxxx> [131206 13:37]: > > > Nokia N900 DT boot breaks for me using 3.13-rc3. You can > > > see the relevant kernel output below. Disabling the AES > > > module in the omap3-n900.dts with status = "disabled" > > > fixed the boot for me. > > > > OK thanks for letting me know. How about the following patch > > to fix it? > > That's basically what I did to fix the problem. > > I guess the proper fix would be a runtime check if the device > can be accessed (if that's possible). AFAIK it is possible to > use the AES module on the N900 if the bootloader is slightly > patched. > > Pali, can you elaborate more about this? I've seen, that you > added a section about this on [0]. > > [0] http://elinux.org/N900#M-Shield > > -- Sebastian > > > Unhandled fault: external abort on non-linefetch (0x1028) at > > 0xfa0c5048 SMP ARM > > Modules linked in: > > CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W > > 3.13.0-rc2+ #446 task: ce057b40 ti: ce058000 task.ti: > > ce058000 > > PC is at omap_aes_dma_stop+0x24/0x3c > > LR is at omap_aes_probe+0x1cc/0x584 > > > > psr: 60000113 > > > > sp : ce059e20 ip : ce0b4ee0 fp : 00000000 > > r10: c0573ae8 r9 : c0749508 r8 : 00000000 > > r7 : ce0b4e00 r6 : 00000000 r5 : ce0b4e10 r4 : ce274890 > > r3 : fa0c5048 r2 : 00000048 r1 : 0000002c r0 : ce274890 > > Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment > > kernel Control: 10c5387d Table: 80004019 DAC: 00000015 > > Process swapper/0 (pid: 1, stack limit = 0xce058248) > > Stack: (0xce059e20 to 0xce05a000) > > 9e20: c0749508 0000a1ff 00000000 c016cd8c c06b5a06 ce2a45f0 > > ce2a4570 ce0b5fb0 9e40: 00000000 480c5000 480c504f c0abe4e4 > > 00000200 00000000 00000000 00000000 9e60: ce0b4e10 ce0b4e10 > > c082da3c c082da3c c02b8c70 c077c610 c0749508 00000000 9e80: > > 00000000 c02b9e7c c02b9e64 ce0b4e10 00000000 c02b8b20 > > ce0b4e10 ce0b4e44 9ea0: c082da3c c02b8cd8 00000000 ce059eb8 > > c082da3c c02b7408 ce079edc ce0b1a34 9ec0: c082da3c c082da3c > > ce2a0280 00000000 c08158d8 c02b8358 c0663405 c0663405 9ee0: > > 00000073 c082da3c c079e4e8 c07ab3bc c0844340 c02b9334 > > 00000000 00000006 9f00: c079e4e8 c0008920 c067f6bf c0ac7c6b > > 00000000 c0712e28 00000000 00000000 9f20: c0712e38 ce059f38 > > 00000093 c0ac7c82 00000000 c0058994 00000000 c07130e8 9f40: > > c07127b8 00000093 00000006 00000006 00000001 00000006 > > 00000006 c079e4e8 9f60: c07ab3bc c0844340 00000093 c0749508 > > c079e4f4 c0749c64 00000006 00000006 9f80: c0749508 00000000 > > 00000000 c0517e2c 00000000 00000000 00000000 00000000 9fa0: > > 00000000 c0517e34 00000000 c000dfb8 00000000 00000000 > > 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 > > 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 > > 00000000 00000000 00000013 00000000 ffffffff ffffffff > > (omap_aes_probe+0x1cc/0x584) > > (platform_drv_probe+0x18/0x48) > > (driver_probe_device+0xb0/0x200) > > (__driver_attach+0x68/0x8c) > > (bus_for_each_dev+0x50/0x88) > > (bus_add_driver+0xcc/0x1c8) > > (driver_register+0x9c/0xe0) > > (do_one_initcall+0x98/0x140) > > (kernel_init_freeable+0x16c/0x23c) > > (kernel_init+0x8/0x100) > > (ret_from_fork+0x14/0x3c) > > Code: e1811002 e5932020 e590300c e0833002 (e593c000) Sebastian, can you try to add #define DEBUG into drivers/crypto/omap-aes.c, enable AES in n900 DT and provide full dmesg output (with kernel crash) which occur on your device? I think you get that previous output from serial console, right? Also your compiled omap-aes.ko module (with debug symbols) and your modified source code could help. -- Pali Rohár pali.rohar@xxxxxxxxx
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