Play graphice test and freeze on imx8mq

[kevincheng]

Hi ,

We use graphic test tool - stability app to test GPU on iMX8mq, about 10~60 mins , system hang-on, nothing can do and no kernel message. Only one time we get below messge. Please check attach file. Have any one can help to figure out this problem?

Below is on enviroment,

OS: Android 9.0.0 2.3.0 BSP

CPU : iMX8mq

Memory : 3G

Test tool : stability app

Message like below, full can check attach file~

-----------------------------------------------------------------------------------------------------

jht_8mq:/ # [ 1999.256021] AXI BUS ERROR
[ 1999.258732] GPU[0](ChipModel=0x7000 ChipRevision=0x6214):
[ 1999.265208] **************************
[ 1999.268978] ***   GPU STATE DUMP   ***
[ 1999.272795] **************************
[ 1999.276726]   axi      = 0x000000A5
[ 1999.280287]   idle     = 0x7FFFBF12
[ 1999.283784]     FE not idle
[ 1999.286844]     PE not idle
[ 1999.289805]     SH not idle
[ 1999.292664]     SE not idle
[ 1999.295466]     RA not idle
[ 1999.298258]     TX not idle
[ 1999.301114]     MC not idle
[ 1999.303916]   DMA appears to be stuck at this address:
[ 1999.309117]     0x1FFE2948
[ 1999.311832]   dmaLow   = 0x0801021B
[ 1999.315383]   dmaHigh  = 0xA8A01200
[ 1999.319033]   dmaState = 0x00000805
[ 1999.322521]     command state       = 5 (PAR_LOAD1_ST)
[ 1999.327745]     command DMA state   = 0 (CMD_IDLE_ST)
[ 1999.332806]     command fetch state = 2 (FET_VALID_ST)
[ 1999.338007]     DMA request state   = 0 (REQ_IDLE_ST)
[ 1999.343067]     cal state           = 0 (CAL_IDLE_ST)
[ 1999.348182]     VE request state    = 0 (VER_IDLE_ST)
[ 1999.353409]   Debug registers:
[ 1999.356532]     RA[0] debug registers:
[ 1999.360297]     [00] 00471BBF 0011EAD5 0011EAD5 0000011A 140200A0 06000422 04D88828 685080C0
[ 1999.368805]     [08] 4AC6B200 00000000 00000000 00000000 00000011 00000B8E 0017C0B1 00000000
[ 1999.377256]     [10] 060BD734 25AC1121 4A02D906 81F40000 12344321 12344321 12344321 12344321
[ 1999.385953]     [18] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.394463]     [20] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.402915]     [28] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.411422]     [30] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.420079]     [38] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.428588]     [40] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.437040]     [48] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.445547]     [50] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.454223]     [58] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.462733]     [60] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.471184]     [68] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.479690]     [70] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.488382]     [78] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.496891]     [80] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.505343]     [88] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.513854]     [90] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.522568]     [98] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.531076]     [A0] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.539527]     [A8] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.548032]     [B0] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.556768]     [B8] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.565277]     [C0] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.573728]     [C8] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.582236]     [D0] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.591002]     [D8] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321
[ 1999.599510]     [E0] 12344321 12344321 12344321 12344321 12344321 12344321 12344321 12344321

Regards,

Kevin

[igorpadykov · Accepted solution]

Hi Kevin

one can try to reproduce issue on i.MX8MQ reference board with Demo Images from

i.MX Software | NXP 

If issue persists only on custom board, rerun ddr test and rebuild image with

updated lpddr4 coefficients found from ddr test.

https://community.nxp.com/docs/DOC-340179 

Best regards
igor
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