<div dir="ltr">If I do not compile with soft lockup debug option checked, I do not see the debug messages but system freezes. <br><br>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. <br>
<br>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. 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? <br>
<br><br><div class="gmail_quote">2008/9/17 Marco Stornelli <span dir="ltr"><<a href="mailto:marco.stornelli@coritel.it">marco.stornelli@coritel.it</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Oops, I meant soft lockup...<br>
<font color="#888888"><br>
Marco Stornelli ha scritto:<br>
</font><div><div></div><div class="Wj3C7c">> But does the test work? Maybe the kernel is configured with softlook<br>
> check (see the kernel menu under kernel hacking), try to disable it and<br>
> recompile. However there's something strange...<br>
><br>
> Caner Altinbasak ha scritto:<br>
>> Hi!<br>
>> I am using a Curtiss Wright DY4-183 board with PPC7447 CPU. I've a pci<br>
>> graphics card with a M9 GPU on it. There is a transparent bridge between the<br>
>> GPU and my PCI bus. My problem a trouble with radeon_dri driver. I want to<br>
>> run a miniglx application to see how the graphics performance is but I am<br>
>> having the following error. I think there is a problem with unhandled<br>
>> interrupts! Have an idea?<br>
>><br>
>> -bash-3.2# ./sample_server &<br>
>> [1] 1082<br>
>> -bash-3.2# [miniglx] probed chipset 0x4c66<br>
>> got MMIOAddress 0x1801e000 offset 67108864<br>
>> shared virtual width is 1024<br>
>> [drm] added 8192 byte SAREA at 0x61036000<br>
>> [drm] mapped SAREA 0x61036000 to 0x18026000, size 8192<br>
>> [drm] framebuffer handle = 0x80000000<br>
>> [drm] register handle = 0x70000000<br>
>> [pci] 8192 kB allocated with handle 0x62187000<br>
>> [pci] ring handle = 0x62187000<br>
>> [pci] ring read ptr handle = 0x62288000<br>
>> [pci] vertex/indirect buffers handle = 0x62289000<br>
>> [pci] GART texture map handle = 0x62489000<br>
>> Using 8 MB AGP aperture<br>
>> Using 1 MB for the ring buffhStart = 1040, hEnd = 1136, hTotal = 1312<br>
>> vStart = 769, vEnd = 772, vTotal = 800<br>
>> h_total_disp = 0x7f00a3 hsync_strt_wid = 0x8c040d<br>
>> v_total_disp = 0x2ff031f vsync_strt_wid = 0x830300<br>
>> pixclock = 12699<br>
>> freq = 7874<br>
>> freq = 7874, PLL min = 12000, PLL max = 35000<br>
>> ref_div = 5, ref_clk = 2700, output_freq = 15748<br>
>> ref_div = 5, ref_clk = 2700, output_freq = 15748<br>
>> post div = 0x1<br>
>> fb_div = 0x1d<br>
>> ppll_div_3 = 0x1001d<br>
>> er<br>
>> Using 2 MB for BUG: soft lockup detected on CPU#0!<br>
>> NIP: 40042044 LR: 40042140 CTR: 400185B4<br>
>> REGS: 5e25bbb0 TRAP: 0901 Not tainted (2.6.16.13.CWCEC.K)<br>
>> MSR: 00009032 <EE,ME,IR,DR> CR: 2490C142 XER: 20000000<br>
>> TASK = 40aa78b0[1082] 'sample_server' THREAD: 5e25a000<br>
>> NIP [40042044] handle_IRQ_event+0x34/0xb8<br>
>> LR [40042140] __do_IRQ+0x78/0x1a0<br>
>> Call Trace:<br>
>> [5E25BC60] [400188A8] cw_pic_unmask_irq_183+0x118/0x138 (unreliable)<br>
>> [5E25BC80] [40042140] __do_IRQ+0x78/0x1a0<br>
>> [5E25BCB0] [4000B1E4] do_IRQ+0x44/0x88<br>
>> [5E25BCD0] [40004F1C] ret_from_except+0x0/0x14<br>
>> [5E25BD90] [40049DDC] __alloc_pages+0x70/0x2a4<br>
>> [5E25BDA0] [40042074] handle_IRQ_event+0x64/0xb8<br>
>> [5E25BDC0] [40042140] __do_IRQ+0x78/0x1a0<br>
>> [5E25BDF0] [4000B1E4] do_IRQ+0x44/0x88<br>
>> [5E25BE10] [40004F1C] ret_from_except+0x0/0x14<br>
>> [5E25BED0] [400244CC] __do_softirq+0x50/0x120<br>
>> [5E25BF00] [40024614] do_softirq+0x78/0x80<br>
>> [5E25BF10] [4002478C] irq_exit+0x60/0x78<br>
>> [5E25BF20] [4000B1E8] do_IRQ+0x48/0x88<br>
>> [5E25BF40] [40004F1C] ret_from_except+0x0/0x14<br>
>> Instruction dump:<br>
>> 9421ffe0 bf61000c 7cbf2b78 7c7b1b78 7c9d2378 90010024 80050004 74092000<br>
>> 40820010 7c0000a6 60008000 7c000124 <3bc00000> 3b800000 48000010 83ff0014<br>
>> vertex/indirect buffers<br>
>> Using 1 MB for AGP textures<br>
>> Will use back buffer at offset 0x300000<br>
>> Will use depth buffer at offset 0x600000<br>
>> Will use 56320 kb for textures at offset 0x900000<br>
>> [drm] Added 32 65536 byte vertex/indirect buffers<br>
>> [drm] dma control initialized, using IRQ 16<br>
>> [drm] Initialized kernel gart heap manager, 5111808<br>
>> color tiling disabled<br>
>> page flipping disabled<br>
>> [miniglx] Setting mode: visible 1024x768 virtual 1024x768x32<br>
>> [miniglx] Readback mode: visible 1024x768 virtual 1024x768x32<br>
>> RADEONEngineRestore<br>
>><br>
>><br>
>><br>
>> ------------------------------------------------------------------------<br>
>><br>
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><br>
<br>
--<br>
Marco Stornelli<br>
Embedded Software Engineer<br>
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni<br>
<a href="http://www.coritel.it" target="_blank">http://www.coritel.it</a><br>
<br>
<a href="mailto:marco.stornelli@coritel.it">marco.stornelli@coritel.it</a><br>
+39 06 72582838<br>
</div></div></blockquote></div><br></div>