Re: [Qemu-devel] [BUG?] aio_get_linux_aio: Assertion `ctx->linux_aio' failed

2018-07-18 Thread Nishanth Aravamudan via Qemu-devel
On 18.07.2018 [11:10:27 -0400], Farhan Ali wrote: > > > On 07/18/2018 09:42 AM, Farhan Ali wrote: > > > > > > On 07/17/2018 04:52 PM, Nishanth Aravamudan wrote: > > > iiuc, this possibly implies AIO was not actually used previously on this > > > guest (it might have silently been falling back

Re: [Qemu-devel] [BUG?] aio_get_linux_aio: Assertion `ctx->linux_aio' failed

2018-07-18 Thread Farhan Ali
On 07/18/2018 09:42 AM, Farhan Ali wrote: On 07/17/2018 04:52 PM, Nishanth Aravamudan wrote: iiuc, this possibly implies AIO was not actually used previously on this guest (it might have silently been falling back to threaded IO?). I don't have access to s390x, but would it be possible to

Re: [Qemu-devel] [BUG?] aio_get_linux_aio: Assertion `ctx->linux_aio' failed

2018-07-18 Thread Farhan Ali
On 07/17/2018 04:52 PM, Nishanth Aravamudan wrote: iiuc, this possibly implies AIO was not actually used previously on this guest (it might have silently been falling back to threaded IO?). I don't have access to s390x, but would it be possible to run qemu under gdb and see if

Re: [Qemu-devel] [BUG?] aio_get_linux_aio: Assertion `ctx->linux_aio' failed

2018-07-17 Thread Nishanth Aravamudan via Qemu-devel
On 17.07.2018 [13:25:53 -0400], Farhan Ali wrote: > Hi, > > I am seeing some strange QEMU assertion failures for qemu on s390x, > which prevents a guest from starting. > > Git bisecting points to the following commit as the source of the error. > > commit

[Qemu-devel] [BUG?] aio_get_linux_aio: Assertion `ctx->linux_aio' failed

2018-07-17 Thread Farhan Ali
Hi, I am seeing some strange QEMU assertion failures for qemu on s390x, which prevents a guest from starting. Git bisecting points to the following commit as the source of the error. commit ed6e2161715c527330f936d44af4c547f25f687e Author: Nishanth Aravamudan Date: Fri Jun 22 12:37:00 2018