DBIish tests are failing spectacularly (JIT compilation of native calls)

[p6rt]

Migrated from rt.perl.org#132328 (status was 'new')

Searchable as RT132328$

[p6rt]

From @AlexDaniel

DBIish tests started to fail (with segv) after this rakudo commit​:
rakudo/rakudo@ff063e7

The bump itself brought these MoarVM changes​:
MoarVM/MoarVM@2017.09.1-602-g676723d...2017.09.1-608-ge051ee3

Committable output before and after​:
command​: commit​: ff063e7b53^,ff063e7b53 https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6
output​: https://gist.github.com/e25c6a14d6078e99f6bb46de494565b1

Not surprisingly there's no crash with MVM_JIT_DISABLE​:
command​: commit​: MVM_JIT_DISABLE=1 ff063e7b53^,ff063e7b53 https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6
output​: https://gist.github.com/24319e448313c13c16d8b67d7961accb

[p6rt]

From @AlexDaniel

Moar bisected to MoarVM/MoarVM@4eadf94

On 2017-10-20 07​:23​:04, alex.jakimenko@​gmail.com wrote​:

DBIish tests started to fail (with segv) after this rakudo commit​:
rakudo/rakudo@ff063e7

The bump itself brought these MoarVM changes​:
https://github.com/MoarVM/MoarVM/compare/2017.09.1-602-
g676723d...2017.09.1-608-ge051ee3

Committable output before and after​:
command​: commit​: ff063e7b53^,ff063e7b53
https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6
output​: https://gist.github.com/e25c6a14d6078e99f6bb46de494565b1

Not surprisingly there's no crash with MVM_JIT_DISABLE​:
command​: commit​: MVM_JIT_DISABLE=1 ff063e7b53^,ff063e7b53
https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6
output​: https://gist.github.com/24319e448313c13c16d8b67d7961accb

[p6rt]

From @AlexDaniel

Offending commit reverted in MoarVM/MoarVM@1a9be0a

I tested it with moar HEAD and indeed the issue is no longer there. So it should work fine after moar and nqp bumps.

｢testneeded｣ ?

On 2017-10-20 07​:53​:23, alex.jakimenko@​gmail.com wrote​:

Moar bisected to
MoarVM/MoarVM@4eadf94

On 2017-10-20 07​:23​:04, alex.jakimenko@​gmail.com wrote​:

DBIish tests started to fail (with segv) after this rakudo commit​:

rakudo/rakudo@ff063e7

The bump itself brought these MoarVM changes​:
https://github.com/MoarVM/MoarVM/compare/2017.09.1-602-
g676723d...2017.09.1-608-ge051ee3

Committable output before and after​:
command​: commit​: ff063e7b53^,ff063e7b53

https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6

output​: https://gist.github.com/e25c6a14d6078e99f6bb46de494565b1

Not surprisingly there's no crash with MVM_JIT_DISABLE​:
command​: commit​: MVM_JIT_DISABLE=1 ff063e7b53^,ff063e7b53

https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6

output​: https://gist.github.com/24319e448313c13c16d8b67d7961accb

[p6rt]

From @AlexDaniel

Honestly, I have no idea how to test this… maybe someone should attempt to golf it, but given that the commit description is “JIT compile native calls”, I guess it'd be a bit complicated.

… I'm fine with just delegating it to the DBIish test suite…

On 2017-10-20 08​:12​:41, alex.jakimenko@​gmail.com wrote​:

Offending commit reverted in
MoarVM/MoarVM@1a9be0a

I tested it with moar HEAD and indeed the issue is no longer there. So
it
should work fine after moar and nqp bumps.

｢testneeded｣ ?

On 2017-10-20 07​:53​:23, alex.jakimenko@​gmail.com wrote​:

Moar bisected to

MoarVM/MoarVM@4eadf94

On 2017-10-20 07​:23​:04, alex.jakimenko@​gmail.com wrote​:

DBIish tests started to fail (with segv) after this rakudo commit​:

rakudo/rakudo@ff063e7

The bump itself brought these MoarVM changes​:
https://github.com/MoarVM/MoarVM/compare/2017.09.1-602-
g676723d...2017.09.1-608-ge051ee3

Committable output before and after​:
command​: commit​: ff063e7b53^,ff063e7b53

https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6

output​: https://gist.github.com/e25c6a14d6078e99f6bb46de494565b1

Not surprisingly there's no crash with MVM_JIT_DISABLE​:
command​: commit​: MVM_JIT_DISABLE=1 ff063e7b53^,ff063e7b53

https://gist.githubusercontent.com/AlexDaniel/13a57dbb993d624c877befc137c33ee6/raw/a575bf2e04e24ced60b35665a4ec5a3324369c47/dbiish.p6

output​: https://gist.github.com/24319e448313c13c16d8b67d7961accb