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Android Crash: Libunity.so crashes while allocating memory on scene start/load

Discussion in 'Android' started by skeptika, Aug 30, 2017.

  1. skeptika

    skeptika

    Joined:
    Dec 31, 2011
    Posts:
    108
    Here is the log output for a consistent crash on my device (Google Nexus 5x). If I'm reading the log correctly, it's trying to allocate memory (this happens as it's switching scenes), and since libunity.so is the culprit, this isn't something I can fix?



    Per the logs, you can see the game is using ~47mb of memory, which doesn't seem excessive? Also based on the log screen, you can see the exact adb logcat settings I'm debugging with.

    I've tried:
    - Unity 5.6.3f1, 2017.1, 2017.2, it crashes on all versions.
    - Not doing anything exotic, Internal build system, it's on Mono2x backend, .Net 2.0 subset, no stripping etc.
    - I can run the same level for hours no crash, it only happens upon level switch (where it appears to be trying to clear and reallocate memory).

    Any ideas? Have I read the logs correctly and this is a Unity bug outside of my control?
     
    Last edited: Aug 31, 2017
    skeptika, Aug 30, 2017
    #1

  2. skeptika

    skeptika

    Joined:
    Dec 31, 2011
    Posts:
    108
    Just a bumpity bump, am I correct in the above post in determining it's a Unity bug that I can't fix and I should just submit a bug report to Unity?

    Can confirm this happens on multiple devices, same crash, same conditions.
     
    Last edited: Aug 31, 2017
    skeptika, Aug 31, 2017
    #2

  3. Evaldas_Unity

    Evaldas_Unity

    Unity Technologies

    Joined:
    Jun 23, 2016
    Posts:
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    Most certainly submit it.
    Don't forget to attach the project that reproduces it (If you're able, stripping it down to smallest reproducible version really helps), devices that experience this (Sometimes helps to narrow down on the problem) and if there are any special steps to do for reproducing this.
    Also, post the Case ID : )
     
    Evaldas_Unity, Sep 1, 2017
    #3

  4. skeptika

    skeptika

    Joined:
    Dec 31, 2011
    Posts:
    108
    UPDATE: Submitted, Case 947531. I stripped it down to 2gigs from 4gigs so it took hours to send, but I did it!
     
    Last edited: Sep 2, 2017
    skeptika, Sep 1, 2017
    #4

  5. yang88369668

    yang88369668

    Joined:
    Jun 19, 2017
    Posts:
    2
    hi,@valdas_Unity
    I met this problem, too.if you have the method to solve please let me know.Thanks a lot.
     

    Attached Files:

    yang88369668, Mar 24, 2018
    #5

  6. Evaldas_Unity

    Evaldas_Unity

    Unity Technologies

    Joined:
    Jun 23, 2016
    Posts:
    85
    Stack trace looks different. Crashes in
    Code (CSharp):
    1. ZN9BltDevice17ExecFastCopyBlockEPvPKvjjjjPK7BltRectS5
    If you have a project and repro steps please submit, and leave case number here so we can check it out : )
     
    Evaldas_Unity, Mar 26, 2018
    #6

  7. akarshj

    akarshj

    Joined:
    May 16, 2018
    Posts:
    3
    Hi,
    I met this problem, too.if you have the method to solve please let me know.
    Thanks a lot.
     
    akarshj, Sep 24, 2018
    #7

  8. akarshj

    akarshj

    Joined:
    May 16, 2018
    Posts:
    3
    my log are like these:
    *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
    Build fingerprint: 'Xiaomi/beryllium/beryllium:8.1.0/OPM1.171019.011/V9.6.14.0.OEJMIFD:user/release-keys'
    Revision: '0'
    ABI: 'arm'
    pid: 20569, tid: 20628, name: UnityGfxDeviceW >>> com.AlgorinTechlabs.bricks.game <<<
    signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0xca280000
    r0 bcb9f8a0 r1 ca27fff0 r2 00000740 r3 64646948
    r4 492f6e65 r5 7265746e r6 2d6c616e r7 54495547
    r8 75747865 r9 00001000 sl 00000001 fp 00000001
    ip 6c426572 sp c947e6b4 lr 00007469 pc edb761e6 cpsr 200e0030

    backtrace:
    #00 pc 000191e6 /system/lib/libc.so (__memcpy_base_aligned+69)
    #01 pc 001ecfcf /vendor/lib/egl/libGLESv2_adreno.so (BltDevice::ExecFastSwCopy(BltExecSwCopy*)+346)
    #02 pc 001e897b /vendor/lib/egl/libGLESv2_adreno.so (BltDevice::ExecSwCopyInternal(BltExecSwCopy*)+6506)
    #03 pc 001f1be1 /vendor/lib/egl/libGLESv2_adreno.so (BltDevice::ExecSwCopy(BltExecSwCopy*)+576)
    #04 pc 001ac0c5 /vendor/lib/egl/libGLESv2_adreno.so (EsxBltLib::CopyHostPtrBltSw(EsxBltCopyHostPtr const*)+8852)
    #05 pc 001593f1 /vendor/lib/egl/libGLESv2_adreno.so (EsxResource::UpdateSubResourceDirect(EsxContext*, unsigned int, EsxBox const*, EsxSurfaceAccessDesc const*, int)+1648)
    #06 pc 000e23ab /vendor/lib/egl/libGLESv2_adreno.so (EsxContext::UpdateSubResource(EsxResource*, unsigned int, EsxBox const*, EsxSurfaceAccessDesc const*)+894)
    #07 pc 0017c207 /vendor/lib/egl/libGLESv2_adreno.so (EsxBufferObject::Update(EsxContext*, unsigned long long, unsigned int, void const*)+260)
    #08 pc 0009dabf /vendor/lib/egl/libGLESv2_adreno.so (EsxContext::GlBufferData(unsigned int, long, void const*, unsigned int)+338)
    #09 pc 000966fd /vendor/lib/egl/libGLESv2_adreno.so (glBufferData+40)
    #10 pc 005632f0 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #11 pc 0053b8f4 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #12 pc 0053b804 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #13 pc 0054ad4c /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #14 pc 0054c2a4 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #15 pc 002aa23c /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #16 pc 002a93d4 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #17 pc 004745fc /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #18 pc 005319e0 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #19 pc 00535c64 /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #20 pc 0052e10c /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #21 pc 003e7b9c /data/app/com.algorintechlabs.justkhel-tZLnlvR4NaC7sH9aheeUXA==/lib/arm/libunity.so
    #22 pc 000482f3 /system/lib/libc.so (__pthread_start(void*)+22)
    #23 pc 0001b5f7 /system/lib/libc.so (__start_thread+32)
     
    akarshj, Sep 24, 2018
    #8

  9. aleksandrk

    aleksandrk

    Unity Technologies

    Joined:
    Jul 3, 2017
    Posts:
    3,014
    This is a different problem from the once that started the post. Please submit a bug report.
     
    aleksandrk, Sep 24, 2018
    #9

  10. ru310050061

    ru310050061

    Joined:
    Mar 27, 2018
    Posts:
    1

    I have the same problem, Have you fixed this bug?
     
    ru310050061, Dec 13, 2018
    #10