| Message ID | 1240541131.6842.682.camel@yhuang-dev.sh.intel.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Headers | show |
Hi Ying, On Fri, Apr 24, 2009 at 10:45:31AM +0800, Huang Ying wrote: > This patch add a minimal HOWTO for PCIE AER software error injection > in Documentation/PCI/pcieaer-howto.txt. I reviewed the patches and they all look good to me. I also think they're a valuable addition to Linux. You can add a Reviewed-by: Andi Kleen <ak@linux.intel.com> to the whole series. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Fri, 24 Apr 2009 10:45:31 +0800 Huang Ying <ying.huang@intel.com> wrote: > This patch add a minimal HOWTO for PCIE AER software error injection > in Documentation/PCI/pcieaer-howto.txt. > > Signed-off-by: Huang Ying <ying.huang@intel.com> > > --- > Documentation/PCI/pcieaer-howto.txt | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) Applied this one (though it doesn't make much sense until the other one is applied too :). -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
--- a/Documentation/PCI/pcieaer-howto.txt +++ b/Documentation/PCI/pcieaer-howto.txt @@ -246,3 +246,24 @@ with the PCI Express AER Root driver? A: It could call the helper functions to enable AER in devices and cleanup uncorrectable status register. Pls. refer to section 3.3. + +4. Software error injection + +Debugging PCIE AER error recovery code is quite difficult because it +is hard to trigger real hardware errors. Software based error +injection can be used to fake various kinds of PCIE errors. + +First you should enable PCIE AER software error injection in kernel +configuration, that is, following item should be in your .config. + +CONFIG_PCIEAER_INJECT=y or CONFIG_PCIEAER_INJECT=m + +After reboot with new kernel or insert the module, a device file named +/dev/aer_inject should be created. + +Then, you need a user space tool named aer-inject, which can be gotten +from: + http://www.kernel.org/pub/linux/kernel/people/yhuang/ + +More information about aer-inject can be found in the document comes +with its source code.
This patch add a minimal HOWTO for PCIE AER software error injection in Documentation/PCI/pcieaer-howto.txt. Signed-off-by: Huang Ying <ying.huang@intel.com> --- Documentation/PCI/pcieaer-howto.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)