[Kernel-packages] [Bug 1825413] Re: mdadm, mkfs, other io commands hang, stuck task, bad rip

2019-05-06 Thread Ryan Harper
Sorry, I missed responding. This were run in separate VMs, this is under our curtin vmtest integration testing. Yes, let me get the q35 trace; it doesn't happen as often. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

Re: [Kernel-packages] [Bug 1825413] Re: mdadm, mkfs, other io commands hang, stuck task, bad rip

2019-04-22 Thread Seth Forshee
On Mon, Apr 22, 2019 at 08:20:30PM -, Ryan Harper wrote: > Hi Seth, > > notice only one of the stack tracks have the floppy, the mdadm one does > not. I've also recreated this on a qemu q35 machine type which does not > include the floppy device. I looked at the madm stack trace, and I was

[Kernel-packages] [Bug 1825413] Re: mdadm, mkfs, other io commands hang, stuck task, bad rip

2019-04-22 Thread Ryan Harper
Hi Seth, notice only one of the stack tracks have the floppy, the mdadm one does not. I've also recreated this on a qemu q35 machine type which does not include the floppy device. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1825413] Re: mdadm, mkfs, other io commands hang, stuck task, bad rip

2019-04-19 Thread Seth Forshee
Looks like something going wrong with the floppy driver. From the description this sounds like a race. I note that a bug with essentially the same stack trace was fixed in 4.20, de7b75d82f70 "floppy: fix race condition in __floppy_read_block_0()." We have that fix though, so not sure what is

[Kernel-packages] [Bug 1825413] Re: mdadm, mkfs, other io commands hang, stuck task, bad rip

2019-04-18 Thread Ryan Harper
root@ubuntu:~# lspci -v -nn 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc. Qemu virtual machine [1af4:1100] Flags: fast devsel 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton