SRU justification: Impact: When starting up the Areca 1220 PCIe card webconfig tool the system locks up with:
BUG: scheduling while atomic: archhttp64/7146/0x1000000001 BUG: soft lockup - CPU#0 stuck for 11s! [archhttp64:7146] BUG: soft lockup - CPU#0 stuck for 11s! [archhttp64:7146] Fix: Softlockup is caused by arcmsr_iop_message_xfer() being called from atomic context under the queuecommand scsi_host_template handler. The current GFP_KERNEL|GFP_DMA flags are wrong: firstly we are in atomic context, secondly this memory is not used for DMA. The patch attached corrects these issues. Patch from upstream commit: 69e562c234440fb7410877b5b24f4b29ef8521d1 Testcase: Starting up Areca card with webconfig tool, system will lockup without the patch. Tested and verified OK by user from PPA kernel: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/235889/comments/22 ** Changed in: linux (Ubuntu) Status: In Progress => Fix Committed -- BUG: scheduling while atomic: archhttp64/7146/0x1000000001 https://bugs.launchpad.net/bugs/235889 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
