Re: Reverting warning for vmalloc and kmemcheck faults in NMI

2014-01-31 Thread Andrew Morton
On Thu, 30 Jan 2014 19:06:58 -0800 Michel Lespinasse wrote: > Hi, > > Way back in 2010, Frederic added commit > ebc8827f75954fe315492883eee5cb3f355d547d to warn us about cases where > faults were incorrectly firing during NMI handling on x86, as the IRET > from such faults would possibly

Re: Reverting warning for vmalloc and kmemcheck faults in NMI

2014-01-31 Thread Andrew Morton
On Thu, 30 Jan 2014 19:06:58 -0800 Michel Lespinasse wal...@google.com wrote: Hi, Way back in 2010, Frederic added commit ebc8827f75954fe315492883eee5cb3f355d547d to warn us about cases where faults were incorrectly firing during NMI handling on x86, as the IRET from such faults would

Reverting warning for vmalloc and kmemcheck faults in NMI

2014-01-30 Thread Michel Lespinasse
Hi, Way back in 2010, Frederic added commit ebc8827f75954fe315492883eee5cb3f355d547d to warn us about cases where faults were incorrectly firing during NMI handling on x86, as the IRET from such faults would possibly trigger nested NMIs. Later (2012), Salman added commit

Reverting warning for vmalloc and kmemcheck faults in NMI

2014-01-30 Thread Michel Lespinasse
Hi, Way back in 2010, Frederic added commit ebc8827f75954fe315492883eee5cb3f355d547d to warn us about cases where faults were incorrectly firing during NMI handling on x86, as the IRET from such faults would possibly trigger nested NMIs. Later (2012), Salman added commit