** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial
-- 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/1650635 Title: vmxnet3 driver could causes kernel panic with v4.4 if LRO enabled. Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Committed Bug description: [Impact] It has been brought to my attention that a Trusty Vmware Virtual Machine running kernel v4.4.0-36 crashed with the following stacktrace : PANIC: "kernel BUG at /build/linux-lts-xenial-QiVniY/linux-lts-xenial-4.4.0/drivers/net/vmxnet3/vmxnet3_drv.c:1353!" ... #0 [ffff88042d683aa0] machine_kexec at ffffffff8105987c #1 [ffff88042d683af8] crash_kexec at ffffffff81105d23 #2 [ffff88042d683bc0] oops_end at ffffffff81030a79 #3 [ffff88042d683be8] die at ffffffff81030f7b #4 [ffff88042d683c18] do_trap at ffffffff8102e04d #5 [ffff88042d683c68] do_error_trap at ffffffff8102e5a7 #6 [ffff88042d683d20] do_invalid_op at ffffffff8102e840 #7 [ffff88042d683d30] invalid_op at ffffffff817f900e [exception RIP: vmxnet3_rq_rx_complete+3016] RIP: ffffffffc004e448 RSP: ffff88042d683de8 RFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff880424099668 RCX: 0000000000000000 RDX: 00000000000005f2 RSI: 00000000000005f2 RDI: ffff88042a61f400 RBP: ffff88042d683e50 R8: 0000000000000000 R9: 0000000000000000 R10: ffff88042902b470 R11: ffff8804293406a8 R12: ffff880424098840 R13: ffff880424099580 R14: ffff88042a61ec00 R15: ffff88042933ae00 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #8 [ffff88042d683de0] vmxnet3_rq_rx_complete at ffffffffc004dcfa [vmxnet3] #9 [ffff88042d683e58] vmxnet3_poll_rx_only at ffffffffc004e60a [vmxnet3] #10 [ffff88042d683e90] net_rx_action at ffffffff816f3544 #11 [ffff88042d683f00] __do_softirq at ffffffff81081e7d #12 [ffff88042d683f68] irq_exit at ffffffff81082255 #13 [ffff88042d683f78] do_IRQ at ffffffff817f9ee6 --- <IRQ stack> --- #14 [ffff880426c73f30] ret_from_intr at ffffffff817f7fc2 [exception RIP: unknown or invalid address] RIP: fffffffffffffffb RSP: 00007fe17e59bf48 RFLAGS: 00000001 RAX: 00007fe18564ed58 RBX: 00007fe2064ce848 RCX: 00007fe185612d60 RDX: 00007fe20b47eb30 RSI: 00007fe185640d38 RDI: 00007fe18564ed50 RBP: ffffffff817f7fe5 R8: 00007fe185100068 R9: 0000000000037ce0 R10: 0000000000134ad8 R11: 00007fe17e4b7028 R12: 00007fe185100068 R13: 00007fe185632380 R14: 0000000000000000 R15: ffffffff81003a64 ORIG_RAX: 0000000000000001 CS: 7fe185640d38 SS: ffffffffffffff91 bt: WARNING: possibly bogus exception frame RIP: 00000000004e92bb RSP: 00007fe20b47ea40 RFLAGS: 00000283 RAX: 0000000000000001 RBX: 00007fe18564ed58 RCX: fffffffffffffffb RDX: 00007fe185640d38 RSI: 0000000000000001 RDI: 00007fe17e59bf48 RBP: 00007fe185100068 R8: 00007fe18564ed50 R9: 00007fe185640d38 R10: 00007fe20b47eb30 R11: 00007fe185612d60 R12: 0000000000037ce0 R13: 0000000000134ad8 R14: 00007fe17e4b7028 R15: 00007fe2064ce848 ORIG_RAX: ffffffffffffff91 CS: 0033 SS: 002b [Test Case] * There is no real reproducer, the problem occurred randomly if SegCnt == 1 on a Trusty VMware Virtual Machine using Xenial kernel with LRO enabled in the VMware environment. [Regression Potential] * none expected * Commit can be found in upstream linux stable * Yakkety and Zesty kernel has the patch already [Other Info] * Upstream commit : 5021953 vmxnet3: segCnt can be 1 for LRO packets [Original Description] It has been brought to my attention that a Trusty Vmware Virtual Machine running kernel v4.4.0-36 crashed with the following stacktrace : PANIC: "kernel BUG at /build/linux-lts-xenial-QiVniY/linux-lts-xenial-4.4.0/drivers/net/vmxnet3/vmxnet3_drv.c:1353!" ... #0 [ffff88042d683aa0] machine_kexec at ffffffff8105987c #1 [ffff88042d683af8] crash_kexec at ffffffff81105d23 #2 [ffff88042d683bc0] oops_end at ffffffff81030a79 #3 [ffff88042d683be8] die at ffffffff81030f7b #4 [ffff88042d683c18] do_trap at ffffffff8102e04d #5 [ffff88042d683c68] do_error_trap at ffffffff8102e5a7 #6 [ffff88042d683d20] do_invalid_op at ffffffff8102e840 #7 [ffff88042d683d30] invalid_op at ffffffff817f900e [exception RIP: vmxnet3_rq_rx_complete+3016] RIP: ffffffffc004e448 RSP: ffff88042d683de8 RFLAGS: 00010246 RAX: 0000000000000001 RBX: ffff880424099668 RCX: 0000000000000000 RDX: 00000000000005f2 RSI: 00000000000005f2 RDI: ffff88042a61f400 RBP: ffff88042d683e50 R8: 0000000000000000 R9: 0000000000000000 R10: ffff88042902b470 R11: ffff8804293406a8 R12: ffff880424098840 R13: ffff880424099580 R14: ffff88042a61ec00 R15: ffff88042933ae00 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #8 [ffff88042d683de0] vmxnet3_rq_rx_complete at ffffffffc004dcfa [vmxnet3] #9 [ffff88042d683e58] vmxnet3_poll_rx_only at ffffffffc004e60a [vmxnet3] #10 [ffff88042d683e90] net_rx_action at ffffffff816f3544 #11 [ffff88042d683f00] __do_softirq at ffffffff81081e7d #12 [ffff88042d683f68] irq_exit at ffffffff81082255 #13 [ffff88042d683f78] do_IRQ at ffffffff817f9ee6 --- <IRQ stack> --- #14 [ffff880426c73f30] ret_from_intr at ffffffff817f7fc2 [exception RIP: unknown or invalid address] RIP: fffffffffffffffb RSP: 00007fe17e59bf48 RFLAGS: 00000001 RAX: 00007fe18564ed58 RBX: 00007fe2064ce848 RCX: 00007fe185612d60 RDX: 00007fe20b47eb30 RSI: 00007fe185640d38 RDI: 00007fe18564ed50 RBP: ffffffff817f7fe5 R8: 00007fe185100068 R9: 0000000000037ce0 R10: 0000000000134ad8 R11: 00007fe17e4b7028 R12: 00007fe185100068 R13: 00007fe185632380 R14: 0000000000000000 R15: ffffffff81003a64 ORIG_RAX: 0000000000000001 CS: 7fe185640d38 SS: ffffffffffffff91 bt: WARNING: possibly bogus exception frame RIP: 00000000004e92bb RSP: 00007fe20b47ea40 RFLAGS: 00000283 RAX: 0000000000000001 RBX: 00007fe18564ed58 RCX: fffffffffffffffb RDX: 00007fe185640d38 RSI: 0000000000000001 RDI: 00007fe17e59bf48 RBP: 00007fe185100068 R8: 00007fe18564ed50 R9: 00007fe185640d38 R10: 00007fe20b47eb30 R11: 00007fe185612d60 R12: 0000000000037ce0 R13: 0000000000134ad8 R14: 00007fe17e4b7028 R15: 00007fe2064ce848 ORIG_RAX: ffffffffffffff91 CS: 0033 SS: 002b To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1650635/+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
