Public bug reported:

1. Install vim-airline package on 24.04
create config.src file
[vs@cf4:~/dev_git/freertos/scratch2/freertos_sim/lwip]$ cat config.src 

#SRC +=  $(SIMH)/sim_ether.c

SRC +=  $(LWIP)/src/api/tcpip.c
SRC +=  $(LWIP)/src/core/ipv4/acd.c
SRC +=  $(LWIP)/src/netif/ppp/auth.c
SRC +=  $(LWIP)/src/netif/ppp/ccp.c


now move cursor using arrow key up and down on around $LWIP line.
It takes 100% resources
 
   PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND   
                             
  17366 vs        20   0   79552  36220  18432 R 100.0   0.1   0:13.52 vi       
                              
   1802 xrdp      20   0  159772  50940  34816 S  13.2   0.2   1:16.09 xrdp     
                              
   1828 vs        20   0  653668 379052 142040 S   1.7   1.2   0:17.28 Xorg     
                              
   2505 vs        20   0  779252 154092 129204 S   1.3   0.5   0:05.92 konsole  
                              
  11849 vs        20   0   14524   5888   3712 R   0.7   0.0   0:00.98 top      
                              
     17 root      20   0       0      0      0 I   0.3   0.0   0:00.88 
rcu_preempt                            
    784 root      20   0 1763580  33068  19584 S   0.3   0.1   0:05.38 snapd    
                              
   1810 vs        20   0   20916  12268   9452 S   0.3   0.0   0:01.34 systemd  
                              
   1977 vs        20   0 1828648 104652  76156 S   0.3   0.3   0:02.84 xfwm4    
                              
      1 root      20   0   23268  14076   9468 S   0.0   0.0   0:03.15 systemd  
                              
      2 root      20   0       0      0      0 S   0.0   0.0   0:00.00 kthreadd 
                              
      3 root      20   0       0      0      0 S   0.0   0.0   0:00.00 pool_work

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: vim-airline 0.11-2
ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
Uname: Linux 6.8.0-31-generic x86_64
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: XFCE
Date: Sun Jun  2 21:46:40 2024
PackageArchitecture: all
SourcePackage: vim-airline
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: vim-airline (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

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https://bugs.launchpad.net/bugs/2067849

Title:
  vim-airline takes 100% CPU when open condfig.src file

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