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chdcchris · (This post was last modified: 03-22-2016 10:17 PM by chdcchris.)

Hey there. I'm coming from the Dolphin forum to report about the crashes. Dolphin seems to do the exact same thing when Dynarec JIT is enabled.

I've investigated the problem a bit with logcat and it seems that the crashes are very similar. If anyone is interested, here are both errors.

Code:

03-22 23:40:30.997 18606-19793/? A/libc: Fatal signal 4 (SIGILL), code 1, fault addr 0x7f45bfd2e0 in tid 19793 (CPU thread)

03-22 23:40:31.057 3152-3152/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

03-22 23:40:31.057 3152-3152/? A/DEBUG: Build fingerprint: 'samsung/hero2ltexx/hero2lte:6.0.1/MMB29K/G935FXXU1APBF:user/release-keys'

03-22 23:40:31.057 3152-3152/? A/DEBUG: Revision: '9'

03-22 23:40:31.057 3152-3152/? A/DEBUG: ABI: 'arm64'

03-22 23:40:31.057 3152-3152/? A/DEBUG: pid: 18606, tid: 19793, name: CPU thread  >>> org.dolphinemu.dolphinemu <<<

03-22 23:40:31.057 3152-3152/? A/DEBUG: signal 4 (SIGILL), code 1 (ILL_ILLOPC), fault addr 0x7f45bfd5fc

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x0   0000007f45bfd5fc  x1   0000000000000070  x2   0000007f76586a70  x3   0000007f457bf0e0

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x4   0000000000000000  x5   ffffff80ffffffd8  x6   0000000000258eb4  x7   0000007f457bf4f0

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x8   00000000ffffff80  x9   0000007f457bf4f0  x10  0000000000000001  x11  0000007f62e6fc60

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x12  0000007f9096cf80  x13  0000000000000002  x14  0000000000000003  x15  0000000000000029

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x16  000000000000002a  x17  0000007f9096c000  x18  0000007f62e6fc60  x19  0000000000000000

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x20  0000000000000001  x21  0000000000000001  x22  0000000000000001  x23  0000000080000000

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x24  00000000803d45a0  x25  00000000816d73b0  x26  0000000000258e00  x27  0000000000033b38

03-22 23:40:31.097 3152-3152/? A/DEBUG:     x28  0000002500000000  x29  0000007f76750fb0  x30  0000007f45bfd5fc

03-22 23:40:31.097 3152-3152/? A/DEBUG:     sp   0000007f457bf2d0  pc   0000007f45bfd5fc  pstate 0000000060000000

03-22 23:40:31.097 3152-3152/? A/DEBUG:     #00 pc 00000000003fd5fc  <unknown>

Code:

03-22 23:43:38.487 3152-3152/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***

03-22 23:43:38.487 3152-3152/? A/DEBUG: Build fingerprint: 'samsung/hero2ltexx/hero2lte:6.0.1/MMB29K/G935FXXU1APBF:user/release-keys'

03-22 23:43:38.487 3152-3152/? A/DEBUG: Revision: '9'

03-22 23:43:38.487 3152-3152/? A/DEBUG: ABI: 'arm64'

03-22 23:43:38.487 3152-3152/? A/DEBUG: pid: 21266, tid: 21308, name: AndroidRender  >>> org.ppsspp.ppsspp <<<

03-22 23:43:38.487 3152-3152/? A/DEBUG: signal 4 (SIGILL), code 1 (ILL_ILLOPC), fault addr 0x7f57c13dc8

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x0   0000000000000000  x1   0000000100000001  x2   0000000008b32aac  x3   0000000008000000

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x4   00000000ffffffff  x5   0000000000000e9c  x6   0000000000000001  x7   0000000008a38d2c

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x8   0000000000000000  x9   0000007f7602b4f0  x10  0000000000000001  x11  0000007f86b07420

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x12  00000000000062c0  x13  0000000000000040  x14  0000000000000041  x15  000000000000005d

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x16  0000007f57c13dc8  x17  0000000000000068  x18  0000007f86b07420  x19  0000002309fff260

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x20  0000000000000001  x21  0000000009a16cb0  x22  0000000000000280  x23  000000000000526a

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x24  0000007f76ae5000  x25  0000000020000000  x26  0000007f57b00000  x27  0000007f76b1ab90

03-22 23:43:38.527 3152-3152/? A/DEBUG:     x28  0000002300000000  x29  0000000012e17400  x30  0000007f57b001c4

03-22 23:43:38.527 3152-3152/? A/DEBUG:     sp   0000007f7602ab10  pc   0000007f57c13dc8  pstate 0000000060000000

03-22 23:43:38.527 3152-3152/? A/DEBUG:     #00 pc 0000000000113dc8  <unknown>

03-22 23:43:38.527 3152-3152/? A/DEBUG:     #01 pc 00000000000001c0  <unknown>

Now I seem to have found a temporary workaround for this. I've made a video doing some random testing with PPSSPP and Dolphin. This video shows two crashes happening first, then later I get it to work.

I don't seem to be able to post links yet, so I'll just post the youtube video id: watch?v=ayhFpSA-Jw0

This worked for me most of the times (With a few occasional crashes)
As shown in the video:

1. Run PPSSPP
2. Disable Dynarec in settings
3. Run the game to a point after the crashes happen
4. Go back in settings and enable dynarec
5. Go back to the game with the back button
6. The game should run fine after that
7. If it just doesn't seem to work restart phone and try again.

I have tried a similar method with dolphin and for me, it greatly increases the chances of running the game.

I really hope this will help in finding the problem. If we can figure this out, it will help the Dolphin community too.