------- Comment From hb...@us.ibm.com 2015-10-14 19:59 EDT------- Even though this bug happens rarely, causes data corruption in these cases. Patch is accepted in maintainer's tree. The fix is so simple and affects only nx842 driver - basically adds CRC flag for compression and decompression calls to nx842 co-processor. Please include this fix.
https://git.kernel.org/cgit/linux/kernel/git/herbert/cryptodev-2.6.git/commit/?id=ea0b3984c1cc8b28de27a3bec285102b4e366a4c -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1497878 Title: nx842: Corrupted data during uncompression due to HW issue Status in linux package in Ubuntu: Triaged Bug description: == Comment: #0 - Haren Myneni <hb...@us.ibm.com> - 2015-09-19 20:35:29 == ---Problem Description--- Hardware team reported some rare data corruption during uncompression for nx842 co-processor. It might provide user with invalid data after uncompression. So the fix is add CRC support - means Linux adds CRC flag before calling the nx842 so that CRC will be added and checked during compression and uncompression calls. Contact Information = hb...@us.ibm.com ---uname output--- Ubuntu 15.10 Machine Type = power8 ---Debugger--- A debugger is not configured ---Steps to Reproduce--- HW team reported this issue and discussed with them for the possible solution. Stack trace output: no Oops output: no System Dump Info: The system is not configured to capture a system dump. *Additional Instructions for hb...@us.ibm.com: -Attach sysctl -a output output to the bug. == Comment: #1 - Haren Myneni <hb...@us.ibm.com> - 2015-09-19 20:36:14 == The fix is simple with just adding CRC flags before invoking nx842 coprocessor calls. Posted patch and waiting for maintainer to get in to his tree. http://marc.info/?l=linux-crypto-vger&m=144270742211554&w=2 Please include this fix in ubuntu 15.10 release. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
