[Qemu-devel] [Bug 1794950] [NEW] qemu hangs when guest is using linux kernel 4.16+

2018-09-28 Thread Filipe Manana
Public bug reported: I have been using qemu on daily basis 5+ years in order to do btrfs development and testing and it always worked perfectly, until I upgraded the linux kernel of the guests to 4.16. With 4.16+ kernels, when running all the fstests (previously called xfstests), the qemu process

Re: [Qemu-devel] Qemu hanging

2018-09-27 Thread Filipe Manana
On Thu, Sep 27, 2018 at 5:29 PM Alex Bennée wrote: > > > Peter Maydell writes: > > > On 27 September 2018 at 16:42, Alex Bennée wrote: > >> If you can rebuild with: > >> > >> ./configure --enable-debug --extra-cflags="-O0 -g3 > >> -fno-omit-frame-pointer" > > > > -O0 is the default if you spe

[Qemu-devel] Qemu hanging

2018-09-27 Thread Filipe Manana
Hello, Recently qemu started hanging when running fstests (xfstests) after upgrading the guests kernel (linux) from 4.15.x to 4.16. Nothing else changed in the host or guest, besides the kernel version in the guest. Running fstests always hangs when running either the test generic/299 or generic/