diff options
| author | Huang Ying <ying.huang@intel.com> | 2009-04-24 10:45:31 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-06-16 14:29:34 -0700 |
| commit | bfe5a7401785f864a4f30b4f066bfa045a28b9f6 (patch) | |
| tree | 8642a8ec3a4a6639d0e55817b43210137d3b332b /Documentation | |
| parent | 634deb028c9188b4144863ea87dde5457fb93e92 (diff) | |
PCI: PCIE AER: Document for PCIE AER software error injection
This patch adds a minimal HOWTO for PCIE AER software error injection
in Documentation/PCI/pcieaer-howto.txt.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/PCI/pcieaer-howto.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/PCI/pcieaer-howto.txt b/Documentation/PCI/pcieaer-howto.txt index ddeb14beacc8..f6b1ba7464dc 100644 --- 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. |