On 2/22/21 5:41 AM, Sebastian Andrzej Siewior wrote: > On 2021-02-21 17:46:25 [-0800], Dipen Patel wrote: >> Hi, > Hi, > >> I encountered below crash during the sync system call possibly coming >> from the stress threads spawned because of the --io options which does > … > >> Platform: >> Nvidia Jetson AGX XAVIER, with 32GB eMMC 5.1 and 256 bit 32GB LPDDR4 RAM. >> >> Kernel: >> 4.9.201-rt134 > … >> Call stack: >> >> [ 1813.814464] INFO: task stress blocked for more than 120 seconds. >> [ 1813.814610] Not tainted 4.9.201-rt134 #2 > > This is not a crash. It is simply an information that a task was blocked > for quite some time (as it says). Correct, its not a crash but fact that I have hung task panic enabled, it reboots the system where it is not the case for the non-rt kernel with same version, so I am guessing there has to be something in RT that contributed to this. > The important information would be: > - does it recover Yes, I have to disable hung_task_panic otherwise it will restart the system. The system is responsive so I am assuming there is no deadlock. > - does the time in seconds always increase or does it also drop It varies. > - does the message disappear if stress terminates. Yes > > - does it occur on v5.11-RT. I have not tried, I do not have other RT kernel versions besides 4.9.xxx. > > Sebastian >
