Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-29 Thread Markus Armbruster
Alberto Garcia writes: > On Mon 28 Jan 2019 07:38:08 PM CET, Markus Armbruster wrote: > >>> 093 submits several I/O requests using aio_read and aio_write with >>> hmp_qemu_io(), then advances the clock using clock_step and finally >>> calls query-blockstats to see how much of the I/O has been com

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-29 Thread Alberto Garcia
On Mon 28 Jan 2019 07:38:08 PM CET, Markus Armbruster wrote: >> 093 submits several I/O requests using aio_read and aio_write with >> hmp_qemu_io(), then advances the clock using clock_step and finally >> calls query-blockstats to see how much of the I/O has been completed >> (it's an I/O throttli

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-28 Thread Markus Armbruster
Alberto Garcia writes: > On Thu 24 Jan 2019 07:07:47 PM CET, Eric Blake wrote: > 093 and 136 seem really flaky to me. I can reproduce that by > running: That's interesting, I can make 093 fail quite easily now (I haven't tested the other one yet), but I don't think this ha

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-28 Thread Alberto Garcia
On Thu 24 Jan 2019 07:07:47 PM CET, Eric Blake wrote: 093 and 136 seem really flaky to me. I can reproduce that by running: >>> >>> That's interesting, I can make 093 fail quite easily now (I haven't >>> tested the other one yet), but I don't think this happened >>> earlier. I'll try to

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-24 Thread Eric Blake
On 1/24/19 8:34 AM, Alberto Garcia wrote: > On Thu 24 Jan 2019 11:11:06 AM CET, Alberto Garcia wrote: >> On Wed 23 Jan 2019 06:00:49 PM CET, Max Reitz wrote: >>> Hi, >>> >>> 093 and 136 seem really flaky to me. I can reproduce that by running: >> >> That's interesting, I can make 093 fail quite ea

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-24 Thread Alberto Garcia
On Thu 24 Jan 2019 11:11:06 AM CET, Alberto Garcia wrote: > On Wed 23 Jan 2019 06:00:49 PM CET, Max Reitz wrote: >> Hi, >> >> 093 and 136 seem really flaky to me. I can reproduce that by running: > > That's interesting, I can make 093 fail quite easily now (I haven't > tested the other one yet), b

Re: [Qemu-devel] Consistency of iotests 093 and 136

2019-01-24 Thread Alberto Garcia
On Wed 23 Jan 2019 06:00:49 PM CET, Max Reitz wrote: > Hi, > > 093 and 136 seem really flaky to me. I can reproduce that by running: That's interesting, I can make 093 fail quite easily now (I haven't tested the other one yet), but I don't think this happened earlier. I'll try to figure out what'

[Qemu-devel] Consistency of iotests 093 and 136

2019-01-23 Thread Max Reitz
Hi, 093 and 136 seem really flaky to me. I can reproduce that by running: $ dd if=/dev/urandom of=/dev/null in as many shells as I have CPU cores, and then run the tests: $ while TEST_DIR=/tmp/t0 ./check -T -raw 93; do; done or $ while TEST_DIR=/tmp/t0 ./check -T -raw 136; do; done which us