On 10/04/2018 01:04 PM, Mathieu Desnoyers wrote: > commit ce01a1575f45bf319e374592656441021a7f5823 upstream. > > On x86-64, the parametrized selftest code for rseq crashes with a > segmentation fault when compiled with -fpie. This happens when the > param_test binary is loaded at an address beyond 32-bit on x86-64. > > The issue is caused by use of a 32-bit register to hold the address > of the loop counter variable. > > Fix this by using a 64-bit register to calculate the address of the > loop counter variables as an offset from rip. > > Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> > Acked-by: "Paul E . McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> Thanks for q quick back-port. Acked-by: Shuah Khan (Samsung OSG) <shuah@xxxxxxxxxx> thanks, -- Shuah
