On 2019-06-04 11:53:58 [-0700], Eric Biggers wrote: > On latest Linus' tree I'm getting a crash in a 32-bit Wine process. > > I bisected it to the following commit: > > commit 39388e80f9b0c3788bfb6efe3054bdce0c3ead45 > Author: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > Date: Wed Apr 3 18:41:35 2019 +0200 > > x86/fpu: Don't save fxregs for ia32 frames in copy_fpstate_to_sigframe() > > Reverting the commit by applying the following diff makes the problem go away. This looked like a merge artifact and it has been confirmed as such. Now you say that this was a needed piece of code. Interesting. Is that wine process/testcase something you can share? I will try to take a closer look. Sebastian