Caner Altinbasak ha scritto: > If I do not compile with soft lockup debug option checked, I do not see the > debug messages but system freezes. > > It is the same in both case, it just freezes after these messages. Soft lock > debug option only shows me call trace, instruction dump when soft lock up > happens. > > There is a strange thing in call trace. I tried to follow the code, but call > trace is meaningless, most of those functions are not calling the one in > next stack. It seems just like an recursive function creating a buffer > overflow.
I think they are the interrupt nested paths. But I think, the main reason is, handle_IRQ_event function does > not handle the IRQ, so it just enters the IRQ over and over? Any ideas? Am I > wrong? Can you suggest me a path to follow? > What about the function cw_pic_unmask_irq_183? Have you looked at it? > > 2008/9/17 Marco Stornelli <[EMAIL PROTECTED]> > >> Oops, I meant soft lockup... >> >> Marco Stornelli ha scritto: >>> But does the test work? Maybe the kernel is configured with softlook >>> check (see the kernel menu under kernel hacking), try to disable it and >>> recompile. However there's something strange... >>> >>> Caner Altinbasak ha scritto: >>>> Hi! >>>> I am using a Curtiss Wright DY4-183 board with PPC7447 CPU. I've a pci >>>> graphics card with a M9 GPU on it. There is a transparent bridge between >> the >>>> GPU and my PCI bus. My problem a trouble with radeon_dri driver. I want >> to >>>> run a miniglx application to see how the graphics performance is but I >> am >>>> having the following error. I think there is a problem with unhandled >>>> interrupts! Have an idea? >>>> >>>> -bash-3.2# ./sample_server & >>>> [1] 1082 >>>> -bash-3.2# [miniglx] probed chipset 0x4c66 >>>> got MMIOAddress 0x1801e000 offset 67108864 >>>> shared virtual width is 1024 >>>> [drm] added 8192 byte SAREA at 0x61036000 >>>> [drm] mapped SAREA 0x61036000 to 0x18026000, size 8192 >>>> [drm] framebuffer handle = 0x80000000 >>>> [drm] register handle = 0x70000000 >>>> [pci] 8192 kB allocated with handle 0x62187000 >>>> [pci] ring handle = 0x62187000 >>>> [pci] ring read ptr handle = 0x62288000 >>>> [pci] vertex/indirect buffers handle = 0x62289000 >>>> [pci] GART texture map handle = 0x62489000 >>>> Using 8 MB AGP aperture >>>> Using 1 MB for the ring buffhStart = 1040, hEnd = 1136, hTotal = 1312 >>>> vStart = 769, vEnd = 772, vTotal = 800 >>>> h_total_disp = 0x7f00a3 hsync_strt_wid = 0x8c040d >>>> v_total_disp = 0x2ff031f vsync_strt_wid = 0x830300 >>>> pixclock = 12699 >>>> freq = 7874 >>>> freq = 7874, PLL min = 12000, PLL max = 35000 >>>> ref_div = 5, ref_clk = 2700, output_freq = 15748 >>>> ref_div = 5, ref_clk = 2700, output_freq = 15748 >>>> post div = 0x1 >>>> fb_div = 0x1d >>>> ppll_div_3 = 0x1001d >>>> er >>>> Using 2 MB for BUG: soft lockup detected on CPU#0! >>>> NIP: 40042044 LR: 40042140 CTR: 400185B4 >>>> REGS: 5e25bbb0 TRAP: 0901 Not tainted (2.6.16.13.CWCEC.K) >>>> MSR: 00009032 <EE,ME,IR,DR> CR: 2490C142 XER: 20000000 >>>> TASK = 40aa78b0[1082] 'sample_server' THREAD: 5e25a000 >>>> NIP [40042044] handle_IRQ_event+0x34/0xb8 >>>> LR [40042140] __do_IRQ+0x78/0x1a0 >>>> Call Trace: >>>> [5E25BC60] [400188A8] cw_pic_unmask_irq_183+0x118/0x138 (unreliable) >>>> [5E25BC80] [40042140] __do_IRQ+0x78/0x1a0 >>>> [5E25BCB0] [4000B1E4] do_IRQ+0x44/0x88 >>>> [5E25BCD0] [40004F1C] ret_from_except+0x0/0x14 >>>> [5E25BD90] [40049DDC] __alloc_pages+0x70/0x2a4 >>>> [5E25BDA0] [40042074] handle_IRQ_event+0x64/0xb8 >>>> [5E25BDC0] [40042140] __do_IRQ+0x78/0x1a0 >>>> [5E25BDF0] [4000B1E4] do_IRQ+0x44/0x88 >>>> [5E25BE10] [40004F1C] ret_from_except+0x0/0x14 >>>> [5E25BED0] [400244CC] __do_softirq+0x50/0x120 >>>> [5E25BF00] [40024614] do_softirq+0x78/0x80 >>>> [5E25BF10] [4002478C] irq_exit+0x60/0x78 >>>> [5E25BF20] [4000B1E8] do_IRQ+0x48/0x88 >>>> [5E25BF40] [40004F1C] ret_from_except+0x0/0x14 >>>> Instruction dump: >>>> 9421ffe0 bf61000c 7cbf2b78 7c7b1b78 7c9d2378 90010024 80050004 74092000 >>>> 40820010 7c0000a6 60008000 7c000124 <3bc00000> 3b800000 48000010 >> 83ff0014 >>>> vertex/indirect buffers >>>> Using 1 MB for AGP textures >>>> Will use back buffer at offset 0x300000 >>>> Will use depth buffer at offset 0x600000 >>>> Will use 56320 kb for textures at offset 0x900000 >>>> [drm] Added 32 65536 byte vertex/indirect buffers >>>> [drm] dma control initialized, using IRQ 16 >>>> [drm] Initialized kernel gart heap manager, 5111808 >>>> color tiling disabled >>>> page flipping disabled >>>> [miniglx] Setting mode: visible 1024x768 virtual 1024x768x32 >>>> [miniglx] Readback mode: visible 1024x768 virtual 1024x768x32 >>>> RADEONEngineRestore >>>> >>>> >>>> >>>> ------------------------------------------------------------------------ >>>> >>>> _______________________________________________ >>>> Linuxppc-embedded mailing list >>>> Linuxppc-embedded@ozlabs.org >>>> https://ozlabs.org/mailman/listinfo/linuxppc-embedded >> -- >> Marco Stornelli >> Embedded Software Engineer >> CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni >> http://www.coritel.it >> >> [EMAIL PROTECTED] >> +39 06 72582838 >> > -- Marco Stornelli Embedded Software Engineer CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni http://www.coritel.it [EMAIL PROTECTED] +39 06 72582838 _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
