Messages in this thread | | | Subject | Re: [patch 1/1] uml: fix handling of no fpx_regs [critical, for 2.6.12] | From | Alexander Nyberg <> | Date | Mon, 25 Apr 2005 21:57:47 +0200 |
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mån 2005-04-25 klockan 21:12 +0200 skrev blaisorblade@yahoo.it: > From: Andree Leidenfrost <aleidenf@bigpond.net.au>, Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> > > Fix the error path, which is triggered when the processor misses the fpx regs > (i.e. the "fxsr" cpuinfo feature). For instance by VIA C3 Samuel2. Tested and > obvious, please merge ASAP. > > Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> > --- > > linux-2.6.12-paolo/arch/um/os-Linux/sys-i386/registers.c | 7 ++++--- > 1 files changed, 4 insertions(+), 3 deletions(-) > > diff -puN arch/um/os-Linux/sys-i386/registers.c~uml-fix-no_fpx_regs_handling arch/um/os-Linux/sys-i386/registers.c > --- linux-2.6.12/arch/um/os-Linux/sys-i386/registers.c~uml-fix-no_fpx_regs_handling 2005-04-25 21:03:11.000000000 +0200 > +++ linux-2.6.12-paolo/arch/um/os-Linux/sys-i386/registers.c 2005-04-25 21:08:07.000000000 +0200 > @@ -105,14 +105,15 @@ void init_registers(int pid) > panic("check_ptrace : PTRACE_GETREGS failed, errno = %d", > err); > > + errno = 0; > err = ptrace(PTRACE_GETFPXREGS, pid, 0, exec_fpx_regs); > if(!err) > return; > + if(errno != EIO) > + panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d", > + errno);
Looks like you mean "if (err != EIO)" here
> have_fpx_regs = 0; > - if(err != EIO) > - panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d", > - err); > > err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs); > if(err)
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