imx8mm on android9 sometime woule be crash

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imx8mm on android9 sometime woule be crash

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13660284951
Contributor III

hello.nxp

platform:

    imx8mm

    android9

while i found the kernel will be crash sometime.

log below

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jimmychan
NXP TechSupport
NXP TechSupport

Which board are you using?

Which version of Android BSP are you using?

Would you please tell me more in details about "crash sometime"? Please tell me the steps how to reproduce the issue so I can try it on my board.

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13660284951
Contributor III

soc is imx8mm and board is our design。

android kernel version Linux version 4.14.98

this crash is not always happed。

but from the log:we can guess dex2oat is not work well。

could you guess what is the problem from crash log?

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jimmychan
NXP TechSupport
NXP TechSupport

Base on the information you provided , it is hard to guess where is the problem.

Please try more test to narrow down the issue. Also, please try the same on our EVK board.

Maybe try the newer version of BSP. e.g. android_Q10.0.0_1.0.0

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13660284951
Contributor III

hi jimmychan

from the crash log,is is crash by  BootAnimation???

[ 22.131718] flags: 0xfffc00000000000()
[ 22.135470] raw: 0fffc00000000000 0000000000000000 0000000000000001 00000000ffffffef
[ 22.143211] raw: dead000000000100 dead000000000200 0000000000000000 0000000000000000
[ 22.150951] page dumped because: nonzero mapcount
[ 22.155652] Modules linked in: brcmfmac brcmutil
[ 22.160276] CPU: 1 PID: 1014 Comm: kswapd0 Tainted: G B 4.14.98-dirty #1
[ 22.168103] Hardware name: FSL i.MX8MM EVK board (DT)
[ 22.173151] Call trace:
[ 22.175604] [<ffff00000808b378>] dump_backtrace+0x0/0x414
[ 22.181002] [<ffff00000808b7a0>] show_stack+0x14/0x1c
[ 22.186055] [<ffff000008fed3b8>] dump_stack+0x90/0xb0
[ 22.191106] [<ffff00000820a5b0>] bad_page+0xe4/0x140
[ 22.196069] [<ffff00000820a658>] free_pages_check_bad+0x4c/0xc0
[ 22.201988] [<ffff00000820bef8>] free_pcppages_bulk+0x448/0x54c
[ 22.207906] [<ffff00000820d64c>] free_hot_cold_page+0x2ac/0x2d0
[ 22.213824] [<ffff00000820db08>] free_hot_cold_page_list+0x5c/0x108
[ 22.220090] [<ffff00000821fd38>] shrink_page_list+0x46c/0xcd4
[ 22.225834] [<ffff000008220e10>] shrink_inactive_list+0x2a0/0x684
[ 22.231925] [<ffff000008221a78>] shrink_node_memcg+0x424/0x6ec
[ 22.237756] [<ffff000008221e64>] shrink_node+0x124/0x34c
[ 22.243066] [<ffff000008223070>] kswapd+0x2b0/0x5ec
[ 22.247944] [<ffff000008100570>] kthread+0x104/0x130
[ 22.252907] [<ffff0000080850e0>] ret_from_fork+0x10/0x18
[ 22.572465] type=1400 audit(1591671037.228:1712): avc: denied { dac_read_search } for pid=2854 comm="Binder:2854_2" capability=2 scontext=u:r:installd:s0 tcontext=u:r:installd:s0 tclass=capability permissive=0 duplicate messages suppressed
[ 22.572628] audit: audit_lost=2419 audit_rate_limit=5 audit_backlog_limit=64
[ 22.596345] type=1400 audit(1591671039.984:2481): avc: denied { dac_read_search } for pid=2854 comm="Binder:2854_1" capability=2 scontext=u:r:installd:s0 tcontext=u:r:installd:s0 tclass=capability permissive=0
[ 22.601180] audit: rate limit exceeded
[ 22.982344] BUG: Bad page state in process BootAnimation pfn:5c70e
[ 22.988626] page:ffff7e000071c380 count:0 mapcount:-16 mapping: (null) index:0x1

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