On Mon, Jul 24, 2023 at 04:08:41PM +0800, Baoquan He wrote: > On 07/24/23 at 08:23am, David Hildenbrand wrote: > > Hi, > > > > > > > > I met this too when I executed below command to trigger a kcore reading. > > > I wanted to do a simple testing during system running and got this. > > > > > > makedumpfile --mem-usage /proc/kcore > > > > > > Later I tried your above objdump testing, it corrupted system too. > > > > > > > What do you mean with "corrupted system too" -- did it not only fail to > > dump the system, but also actually harmed the system? > > From my testing, reading kcore will cause system panic, then reboot. Not > sure if Jiri saw the same phenomenon. it did not crash for me, just the read error could you get console output from that? jirka > > > > > @Lorenzo do you plan on reproduce + fix, or should we consider reverting > > that change? > > When tested on a arm64 system, the reproducution is stable. I will have > a look too to see if I have some finding this week. >
