Hi

 

We are using yaffs2 for onenand Samsung and we are finding all fsstress process goes to un-interruptable state.we checked grosslock count state by adding following line in dump_proc function of yaffs2

 buf += sprintf(buf, "lock status......... %d\n", dev->grossLock.count);

 

lock count value is -1 when it hangs. 

 

hang board memory usage

 

198 root       1000 S   /bin/bash /fsstress_script.sh
  201 root        456 S   /fsstress -p 3 -n 10000 -d /tmp -l 0
  390 root        148 S   sleep 3600
  411 root        460 D   /fsstress -p 3 -n 10000 -d /tmp -l 0
  412 root        412 D   /fsstress -p 3 -n 10000 -d /tmp -l 0
  413 root        372 D   /fsstress -p 3 -n 10000 -d /tmp -l 0
  414 root        280 R   ps

# free
             total             used            free       shared      buffers
 Mem:        62264        60412         1852            0         8192
Swap:            0            0               0
Total:        62264        60412         1852