> On 5 Feb 2018, at 7:21 PM, Peridot <[email protected]> wrote: > > This is still an issue even with the bionic dailies. The easiest way > (read: without recompiling kernels) I have found to get it to work is to > disable IOMMU in your BIOS and add "iommu=soft" to the kernel booting > options in grub. > > linux can then detect everything properly (all cores) and I've had zero > crashes. The only issue is that it's using software IOMMU. > > Without these options you will either get crashes or hangs relating to > the ACPI table (booting with acpi=off will only show a single core). > Lots of AMD-Vi Logged events. and irq crashes. > > I believe this is related to > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1671360 > <https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1671360>
This particular bug is about interrupt storm from AMD GPIO driver. Can you file a separate bug instead? > > I'm on a Ryzen 1800X and Biostar B350GT5. > > -- > You received this bug notification because you are subscribed to linux > in Ubuntu. > https://bugs.launchpad.net/bugs/1690085 > > Title: > Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks > > Status in Linux: > Unknown > Status in linux package in Ubuntu: > Confirmed > > Bug description: > Hi, > > > We aregetting various kernel crash on a pretty new config. > We're using Ryzen 1800X CPU with X370 Gaming Pro Carbon MB (7A32V1) using > latest BIOS available (1.52) > > We are running Ubuntu 17.04 (amd64), we've tried different kernel version, > native one and releases from http://kernel.ubuntu.com/~kernel-ppa/mainline/ > too. > Tested kernel version: > > native 17.04 kernel > 4.10.15 > > Issues are the same, we're getting random freeze on the machine. > > Here is kern.log entry when happening : > > May 10 22:41:56 dev2 kernel: [24366.186246] INFO: rcu_sched detected stalls > on CPUs/tasks: > May 10 22:41:56 dev2 kernel: [24366.187618] 0-...: (1 GPs behind) > idle=49b/1/0 softirq=28561/28563 fqs=913449 > May 10 22:41:56 dev2 kernel: [24366.188977] (detected by 12, t=1860207 > jiffies, g=10001, c=10000, q=4656) > May 10 22:41:56 dev2 kernel: [24366.190344] Task dump for CPU 0: > May 10 22:41:56 dev2 kernel: [24366.190345] swapper/0 R running task > 0 0 0 0x00000008 > May 10 22:41:56 dev2 kernel: [24366.190348] Call Trace: > May 10 22:41:56 dev2 kernel: [24366.190354] ? native_safe_halt+0x6/0x10 > May 10 22:41:56 dev2 kernel: [24366.190355] ? default_idle+0x20/0xd0 > May 10 22:41:56 dev2 kernel: [24366.190358] ? arch_cpu_idle+0xf/0x20 > May 10 22:41:56 dev2 kernel: [24366.190360] ? default_idle_call+0x23/0x30 > May 10 22:41:56 dev2 kernel: [24366.190362] ? do_idle+0x16f/0x200 > May 10 22:41:56 dev2 kernel: [24366.190364] ? cpu_startup_entry+0x71/0x80 > May 10 22:41:56 dev2 kernel: [24366.190366] ? rest_init+0x77/0x80 > May 10 22:41:56 dev2 kernel: [24366.190368] ? start_kernel+0x464/0x485 > May 10 22:41:56 dev2 kernel: [24366.190369] ? > early_idt_handler_array+0x120/0x120 > May 10 22:41:56 dev2 kernel: [24366.190371] ? > x86_64_start_reservations+0x24/0x26 > May 10 22:41:56 dev2 kernel: [24366.190372] ? > x86_64_start_kernel+0x14d/0x170 > May 10 22:41:56 dev2 kernel: [24366.190373] ? start_cpu+0x14/0x14 > May 10 22:44:56 dev2 kernel: [24546.188093] INFO: rcu_sched detected stalls > on CPUs/tasks: > May 10 22:44:56 dev2 kernel: [24546.189461] 0-...: (1 GPs behind) > idle=49b/1/0 softirq=28561/28563 fqs=935027 > May 10 22:44:56 dev2 kernel: [24546.190823] (detected by 14, t=1905212 > jiffies, g=10001, c=10000, q=4740) > May 10 22:44:56 dev2 kernel: [24546.192191] Task dump for CPU 0: > May 10 22:44:56 dev2 kernel: [24546.192192] swapper/0 R running task > 0 0 0 0x00000008 > May 10 22:44:56 dev2 kernel: [24546.192195] Call Trace: > May 10 22:44:56 dev2 kernel: [24546.192199] ? native_safe_halt+0x6/0x10 > May 10 22:44:56 dev2 kernel: [24546.192201] ? default_idle+0x20/0xd0 > May 10 22:44:56 dev2 kernel: [24546.192203] ? arch_cpu_idle+0xf/0x20 > May 10 22:44:56 dev2 kernel: [24546.192204] ? default_idle_call+0x23/0x30 > May 10 22:44:56 dev2 kernel: [24546.192206] ? do_idle+0x16f/0x200 > May 10 22:44:56 dev2 kernel: [24546.192208] ? cpu_startup_entry+0x71/0x80 > May 10 22:44:56 dev2 kernel: [24546.192210] ? rest_init+0x77/0x80 > May 10 22:44:56 dev2 kernel: [24546.192211] ? start_kernel+0x464/0x485 > May 10 22:44:56 dev2 kernel: [24546.192213] ? > early_idt_handler_array+0x120/0x120 > May 10 22:44:56 dev2 kernel: [24546.192214] ? > x86_64_start_reservations+0x24/0x26 > May 10 22:44:56 dev2 kernel: [24546.192215] ? > x86_64_start_kernel+0x14d/0x170 > May 10 22:44:56 dev2 kernel: [24546.192217] ? start_cpu+0x14/0x14 > > Depending on the kernel version, we've got NMI watchdog errors related to > CPU stuck (mentioning the CPU core id, which is random). > Crash is happening randomly, but in general after some hours (3-4h). > > Now, we've installed kernel 4.11.0-041100-generic #201705041534 this morning > and waiting for crash... > For now, the machine is not "used", at least, it's not CPU stressed... > > > Thanks > --- > ApportVersion: 2.20.4-0ubuntu4 > Architecture: amd64 > DistroRelease: Ubuntu 17.04 > InstallationDate: Installed on 2017-05-09 (1 days ago) > InstallationMedia: Ubuntu-Server 17.04 "Zesty Zapus" - Release amd64 > (20170412) > Package: linux (not installed) > ProcEnviron: > TERM=xterm-256color > PATH=(custom, no user) > XDG_RUNTIME_DIR=<set> > LANG=fr_FR.UTF-8 > SHELL=/bin/bash > Tags: zesty > Uname: Linux 4.11.0-041100-generic x86_64 > UnreportableReason: The running kernel is not an Ubuntu kernel > UpgradeStatus: No upgrade log present (probably fresh install) > UserGroups: > > _MarkForUpload: True > > To manage notifications about this bug go to: > https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1690085 Title: Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1690085/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
