Many app restarts if the app is in background

[Patrick]

Hello,

since a few days (can’t say if it is since iOS 13 or an Cachly update) the app crashes / closes very often in the background. Can anybody confirm this? I also looked into the logs and found some infos about high cpu usage in background. Maybe it’s a Cachly bug? I have attached 2 logs. 

 

{"app_name":"Cachly","timestamp":"2019-10-07 07:44:08.34 +0200","app_version":"5.2.9","slice_uuid":"EC17B9A6-14AF-3E82-9882-B69860032588","adam_id":645384141,"build_version":"1","bundleID":"com.zedsaid.geocaching","share_with_app_devs":true,"is_first_party":false,"bug_type":"202","os_version":"iPhone OS 13.1.2 (17A860)","incident_id":"44DA3F64-C519-4DA1-9063-B8275936B1DC","name":"Cachly"}
Date/Time:        2019-10-07 07:42:31 +0200
End time:         2019-10-07 07:44:08 +0200
OS Version:       iPhone OS 13.1.2 (Build 17A860)
Architecture:     arm64e
Report Version:   29
Incident Identifier: 44DA3F64-C519-4DA1-9063-B8275936B1DC

Data Source:      Microstackshots
Shared Cache:     0x13d20000 BDEF4C4B-9094-33DE-8B0D-0E4A31BF0D40

Command:          Cachly
Path:             /private/var/containers/Bundle/Application/D5267F8B-F73F-4FCF-9E31-1618E5A2FACA/Cachly.app/Cachly
Identifier:       com.zedsaid.geocaching
Version:          5.2.9 (1)
Beta Identifier:  6945A8BE-A2F1-4635-BAE4-5AF768C34EB6
PID:              522

Event:            cpu usage
Action taken:     none
CPU:              90 seconds cpu time over 97 seconds (93% cpu average), exceeding limit of 50% cpu over 180 seconds
CPU limit:        90s
Limit duration:   180s
CPU used:         90s
CPU duration:     97s
Duration:         97.07s
Duration Sampled: 12.00s
Steps:            16

Hardware model:   iPhone12,3
Active cpus:      6

Heaviest stack for the target process:
  9  ??? (libsystem_pthread.dylib + 40048) [0x193e94c70]

 

- - - Second Log - - -

 

{"app_name":"Cachly","timestamp":"2019-10-08 15:47:23.22 +0200","app_version":"5.2.9","slice_uuid":"ec17b9a6-14af-3e82-9882-b69860032588","adam_id":645384141,"build_version":"1","bundleID":"com.zedsaid.geocaching","share_with_app_devs":true,"is_first_party":false,"bug_type":"109","os_version":"iPhone OS 13.1.2 (17A860)","incident_id":"88A3900A-2353-4BAE-B656-DBC1036B1568","name":"Cachly"}
Incident Identifier: 88A3900A-2353-4BAE-B656-DBC1036B1568
CrashReporter Key:   b6ab8653baab6bcef54b3b5bdcb96cf13472c603
Hardware Model:      iPhone12,3
Process:             Cachly [3256]
Path:                /private/var/containers/Bundle/Application/D5267F8B-F73F-4FCF-9E31-1618E5A2FACA/Cachly.app/Cachly
Identifier:          com.zedsaid.geocaching
Version:             1 (5.2.9)
AppStoreTools:       11A1002b
AppVariant:          1:iPhone12,3:13
Code Type:           ARM-64 (Native)
Role:                unknown
Parent Process:      launchd [1]
Coalition:           com.zedsaid.geocaching [1239]

Date/Time:           2019-10-08 15:47:22.6563 +0200
Launch Time:         2019-10-08 15:46:40.2241 +0200
OS Version:          iPhone OS 13.1.2 (17A860)
Release Type:        User
Baseband Version:    1.01.17
Report Version:      104

Exception Type:  EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Termination Reason: Namespace SPRINGBOARD, Code 0x8badf00d
Termination Description: SPRINGBOARD, scene-create watchdog transgression: application<com.zedsaid.geocaching>:3256 exhausted real (wall clock) time allowance of 29.81 seconds | ProcessVisibility: Background | ProcessState: Suspended | WatchdogEvent: scene-create | WatchdogVisibility: Background | WatchdogCPUStatistics: ( | "Elapsed total CPU time (seconds): 14.200 (user 14.200, system 0.000), 8% CPU", | "Elapsed application CPU time (seconds): 0.288, 0% CPU" | )
Triggered by Thread:  0

[Nic Hubbard]

This is just the normal iOS watchdog process that will kill apps in the background if other apps in the foreground are needing the resources.

[Patrick]

I know but this happens every time if I switch to another app and back again, on an iPhone 11 Pro. Wasn’t the case with my previous iPhone Xs. 

[Nic Hubbard]

1 hour ago, Patrick said:

I know but this happens every time if I switch to another app and back again, on an iPhone 11 Pro. Wasn’t the case with my previous iPhone Xs. 

I am on an 11 Pro also and I am not able to replicate the situation. Can you send me the crash files for Cachly by email (make sure to send the files not just copy the text) that way I can use them to debug? support@cach.ly

Thanks! 

[Scarch]

I have this same problem, but I’m still using an iPhone 6...that will change very soon :) possibly within hours

Cachly has shut down when I switch to another app to grab text, navigate with a map program, check a web page, answer a text, etc

i’ve been experiencing it for about 9mos - year. I have shutdown all apps and also removed all photos, and restarted the phone to free up as much resource as possible

My next solution is new phone, wanted to see if there is any further actons I can take to avoid the occurrence on the new device

[Nic Hubbard]

On 1/6/2020 at 8:41 AM, Scarch said:

Cachly has shut down when I switch to another app to grab text, navigate with a map program, check a web page, answer a text, etc

Unfortunately this is a standard thing that iOS does. It is in charge of killing apps if it chooses.

However, we are working on some solutions to this. Stay tuned for 6.0.

[barefootguru]

This got much worse with iOS 13 

I typically see it when I'm in Cachly, pull down the Control Centre and take a photo, then go back to Cachly — it's been killed, so I lose the tab I was on, and the list I was in.

iPhone 11 Pro

[Nic Hubbard]

7 hours ago, barefootguru said:

This got much worse with iOS 13 

I typically see it when I'm in Cachly, pull down the Control Centre and take a photo, then go back to Cachly — it's been killed, so I lose the tab I was on, and the list I was in.

This will be fixed in Cachly 6.0 when we introduce State Restoration. This will bring you right back to where you left off in Cachly, even if iOS kills it in the background.