From: Meelis Roos <mroos@xxxxxxxx> Date: Wed, 10 Oct 2018 16:24:59 +0300 > I have seen multiple strange messages like this, on multiple sparc64 > machines: > > [ 55.523882] CPU[1]: Cheetah+ D-cache parity error at > TPC[0000000000707e8c] > [ 55.626033] TPC<n_tty_set_termios+0x2c/0x3c0> > > This specfic one ise from n_tty_set_termios and it is currently > repeatable on a Sun V210. > I have seen these on V245 and V445 too, with different addresses. On > V445, the same address caused > errors on multiple CPUs so it does not seem like a hardware problem, > rather something software releated, > that's why I am reporting it here. > > On V445 it is gone with my current custom kernels but was there with > 4.16.0-1-sparc64-smp Debian kernel package, > probabaly because I do not have bpfilter compiled in: I just started getting my older machines up again and I get these kinds of errors sometimes too, usually in the TSB copy routine. I'll definitely be looking into this and thanks for the report and data.
