Bug #118884

【AF】【monkey】monkey异常停止后，设备黑屏背光亮，adb识别不到设备

Added by 物联网测试组_CDTS 唐霞 about 2 years ago. Updated almost 2 years ago.

Status:NEED_INFOStart date:2023-06-24
Priority:NormalDue date:
Assignee:移动测试一组_CDTS 刘强% Done:

100%

Category:黑屏
Target version:-
Need_Info:-- Found Version:112（621）release版本
Resolution: Degrated:No
Severity:Normal Verified Version:
Reproducibility:Rarely Fixed Version:2023-07-11
Test Type:Release Test Root cause:设备突然掉电

Description

【问题描述】
设备执行monkey测试：monkey --pkg-blacklist-file /sdcard/blacklist.txt --ignore-crashes --ignore-timeouts --ignore-security-exceptions --monitor-native-crashes --ignore-native-crashes -s 20 --throttle 500 --pct-touch 30 --pct-motion 15 --pct-nav 15 --pct-majornav 15 --pct-syskeys 5 --pct-appswitch 10 --pct-anyevent 10 --ignore-crashes -v -v -v 2500000 2>/sdcard/error.txt 1>/sdcard/info.txt
monkey异常停止后设备黑屏背光亮，adb识别不到设备

624monkey.zip (25.9 MB) 物联网测试组_CDTS 唐霞 , 2023-06-24 15:12

掉电或者进dump.jpg (588 KB) CD SYSTEM-夏旭, 2023-06-25 15:19

%e6%8e%89%e7%94%b5%e6%88%96%e8%80%85%e8%bf%9bdump

History

#3 Updated by CD TPM-王祥林 about 2 years ago

  • Assignee changed from CD TPM-王祥林 to CD SYSTEM-胡兵

#4 Updated by CD SYSTEM-夏旭 about 2 years ago

【进展】
/下载/118884/tlog_iov0201017500006162025411a2212290000002271_000527_0624143035/FSEM_000527_0321_0624142832/kernel
如图
掉电或者进dump

#5 Updated by CD SYSTEM-夏旭 about 2 years ago

掉电

#6 Updated by CD SYSTEM-夏旭 about 2 years ago

【当前分析】

掉电之前已经出现黑屏现象，该问题跟踪掉电之前黑屏

需要显示驱动检查

Z:\home\he\下载\118884\tlog_iov0201017500006162025411a2212290000002271_000527_0624143035\FSEM_000526_0320_0624081340\kernel\000526_kernel_01384_230624_080947.log （匹配36次）
行 59: 06-24 08:09:51.659 0 0 E [219394.615939] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 116: 06-24 08:09:55.945 0 0 E [219398.898140] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 173: 06-24 08:10:00.084 0 0 E [219403.037969] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 240: 06-24 08:10:04.215 0 0 E [219407.172941] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 295: 06-24 08:10:08.347 0 0 E [219411.305182] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 360: 06-24 08:10:12.624 0 0 E [219415.581239] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 432: 06-24 08:10:16.804 0 0 E [219419.761277] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 483: 06-24 08:10:20.924 0 0 E [219423.881471] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 496: 06-24 08:10:25.062 0 0 E [219428.017678] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 534: 06-24 08:10:29.321 0 0 E [219432.276447] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 590: 06-24 08:10:33.444 0 0 E [219436.397469] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)
行 634: 06-24 08:10:37.570 0 0 E [219440.525406] [MAX975X: max96755x_vc1_lcd_dtc_check] ERROR DTC_Display: screen not ready(0), bl_sta(1), lvl(75)

#7 Updated by 物联网项目组-RD3_CDTS 周飞 about 2 years ago

  • Assignee changed from CD SYSTEM-胡兵 to CD BSP-余霄

#8 Updated by CD BSP-余霄 about 2 years ago

  • Assignee changed from CD BSP-余霄 to CD SYSTEM-胡兵

已确认该屏幕屏端软件不是目前最新版本。
正常显示下，也会显示该log，该值打印不影响正常显示。

#9 Updated by CD SYSTEM-夏旭 about 2 years ago

【当前分析】

本地验证 "echo c > /proc/sysrq-trigger" 后端口在901D 且 识别不到adb

最后一次执行monkey 之后就进入了dump
行 1664: 06-24 08:35:05.310 32716 32716 I Monkey : Sleeping for 500 milliseconds

logcat 开始打印NULL
06-24 08:35:05.479 1753 3625 D audio_hw_primary: check_usecases_codec_backend:becf: NULLNULLNULLNULL

kernel 开始打印NULL
06-24 08:35:05.251 0 0 I [220908.408227] [schedu][0x3db8cc4bd7a][08: 35:05.250277] wlan: [3383:I:HDD] wlan NULLNULLNULLNULL

#10 Updated by CDTS-TEST 周婷 about 2 years ago

  • Assignee changed from CD SYSTEM-胡兵 to CD SYSTEM-夏旭

#11 Updated by 物联网测试组_CDTS 唐霞 about 2 years ago

  • Category set to 黑屏

#12 Updated by CD SYSTEM-夏旭 almost 2 years ago

  • Status changed from New to RESOLVED
  • Assignee changed from CD SYSTEM-夏旭 to 物联网测试组_CDTS 唐霞
  • % Done changed from 0 to 100
  • Resolution changed from -- to WONTFIX
  • Degrated changed from -- to No
  • Fixed Version set to 2023-07-11
  • Root cause set to 设备突然掉电

【目前进展】
通过日志分析日志最后一直在打印NULL，只有两种情况会导致
1.设备突然掉电
2.设备进入dump
连接qpst没有产生dump，那就是突然掉电导致的

#13 Updated by 移动测试一组_CDTS 刘强 almost 2 years ago

  • Status changed from RESOLVED to VERIFY_FAILED
  • Assignee changed from 物联网测试组_CDTS 唐霞 to CD TPM-王祥林

这个问题存在疑问：
1. 出问题的设备屏幕与设备是一起供电的，屏幕背景光亮着，那么当时就是有电的，为什么会黑屏
2. 之前分析连接usb没有抓qpst，也就是没有进入dump
3. 如果按照分析说是异常断掉，掉电后为什么系统没有启动、还是黑屏状态，根据1 的情况是上电了的，就算掉电应该也会重新亮屏开机才对

@王祥林 麻烦帮忙再判断下这个问题，以WONTFIX的形式处理应该不行

#14 Updated by CD TPM-王祥林 almost 2 years ago

  • Status changed from VERIFY_FAILED to ASSIGNED

问题出现的时候我在现场，澄清一下。
当时我发现设备是有端口的901D以为是正常开机的端口，所以没有开QPST抓dump。屏幕背光亮，而控制和屏幕是一起供电，说明控制器也有电，大概率是进dump了。
由于没有抓到ramdump，目前还是比较难继续分析，建议继续观察吧。出现了类似现象先解QPST看看有没有进dump。

#15 Updated by CD TPM-王祥林 almost 2 years ago

  • Status changed from ASSIGNED to NEED_INFO
  • Assignee changed from CD TPM-王祥林 to 移动测试一组_CDTS 刘强
  • Resolution deleted (WONTFIX)

#16 Updated by 移动测试一组_CDTS 刘强 almost 2 years ago

DB_0717版本未复现，继续跟踪

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