[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
Dexuan - see https://bugs.launchpad.net/bugs/1973758 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
The 5.4.0-1075-azure and newer kernels are broken in that the VM can easily panic when the Mellanox VF NIC is removed and added due to Azure host servicing events or the below manual "unbind/bind" test (here the GUID can be different in different VMs): for i in `seq 1 1000`; do cd /sys/bus/vmbus/drivers/hv_pci; echo abdc2107-402e-4704-8c88-c2b850696c3c > unbind; echo abdc2107-402e-4704-8c88-c2b850696c3c > bind; done A sample panic call-trace is: [ 107.359954] kernel BUG at /build/linux-azure-5.4-4I3kFs/linux-azure-5.4-5.4.0/mm/slub.c:4020! [ 107.363858] invalid opcode: [#1] SMP NOPTI [ 107.365870] CPU: 0 PID: 334 Comm: kworker/0:2 Not tainted 5.4.0-1077-azure #80~18.04.1-Ubuntu [ 107.369589] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090008 12/07/2018 [ 107.373811] Workqueue: events vmbus_onmessage_work [ 107.375909] RIP: 0010:kfree+0x1d2/0x240 … [ 107.413789] Call Trace: [ 107.414867] kobject_uevent_env+0x1b5/0x7e0 [ 107.416747] kobject_uevent+0xb/0x10 [ 107.418327] device_release_driver_internal+0x191/0x1c0 [ 107.420653] device_release_driver+0x12/0x20 [ 107.422523] bus_remove_device+0xe1/0x150 [ 107.424279] device_del+0x167/0x380 [ 107.425824] device_unregister+0x1a/0x60 [ 107.427536] vmbus_device_unregister+0x27/0x50 [ 107.429528] vmbus_onoffer_rescind+0x1d0/0x1f0 [ 107.431474] vmbus_onmessage+0x2c/0x70 [ 107.433104] vmbus_onmessage_work+0x22/0x30 [ 107.434919] process_one_work+0x209/0x400 [ 107.436661] worker_thread+0x34/0x40 It turns out there is a bug in https://git.launchpad.net/~canonical- kernel/ubuntu/+source/linux-azure/+git/bionic/commit/?id=16a3c750a78d8, which misses the second hunk of the upstream patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=877b911a5ba0. Please apply the below patch to fix the issue: --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -3653,7 +3653,7 @@ static int hv_pci_remove(struct hv_device *hdev) hv_put_dom_num(hbus->bridge->domain_nr); - free_page((unsigned long)hbus); + kfree(hbus); return ret; } BTW, please apply this patch as well (Note: this patch is not really required as it's only for error handling path, which is usually unlikely): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=42c3d41832ef4fcf60aaa6f748de01ad99572adf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
This bug was fixed in the package linux-azure - 5.4.0-1077.80 --- linux-azure (5.4.0-1077.80) focal; urgency=medium * focal/linux-azure: 5.4.0-1077.80 -proposed tracker (LP: #1968796) * Packaging resync (LP: #1786013) - debian/dkms-versions -- update from kernel-versions (main/2022.03.21) * focal/linux-azure: Enable missing config options (LP: #1968749) - Drivers: hv: vmbus: Propagate VMbus coherence to each VMbus device - PCI: hv: Propagate coherence from VMbus device to PCI device - [Config] azure: arm64: Ignore module movements - [Config] azure: arm64: Enable RAID config options - [Config] azure: arm64: Enable SQUASHFS config options -- Tim Gardner Tue, 12 Apr 2022 18:53:53 -0600 ** Changed in: linux-azure (Ubuntu Focal) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
This bug is awaiting verification that the linux- azure-5.4/5.4.0-1076.79~18.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed-bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
Microsoft tested ** Tags removed: verification-needed-focal ** Tags added: verification-done-focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
This bug is awaiting verification that the linux-azure/5.4.0-1075.78 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965618] Re: linux-azure: Focal 5.4 arm64 support
https://lists.ubuntu.com/archives/kernel-team/2022-March/128987.html ** Changed in: linux-azure (Ubuntu Focal) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965618 Title: linux-azure: Focal 5.4 arm64 support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1965618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
