Messages in this thread Patch in this message | | | Subject | [patch 1/1] uml: fix handling of no fpx_regs [critical, for 2.6.12] | From | blaisorblade@yahoo ... | Date | Mon, 25 Apr 2005 21:12:51 +0200 |
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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); 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) _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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