Konstantin Knizhnik 1d68577fbd Check target slot state in prefetch_wait_for (#11779) ...

## Problem

See https://neondb.slack.com/archives/C04DGM6SMTM/p1745599814030679

Assume the following scenario: prefetch_wait_for is doing
`CHECK_FOR_INTERRUPTS` which tries to load prefetch responses.
In case of error is calls pageserver_disconnect which aborts all
in-flight requests. But such failure is not detected by
`prefetch_wait_for` which returns true. As a result
`communicator_read_at_lsnv` assumes that slot is received, but as far as
asserts are disables at prod, it is not actually checked.
Then it tries to interpret response and ... *SIGSEGV*

## Summary of changes

Check target slot state  in `prefetch_wait_for`.

Resolves https://github.com/neondatabase/cloud/issues/28258

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>

2025-04-30 12:44:59 +00:00

..

neon

Check target slot state in prefetch_wait_for (#11779)

2025-04-30 12:44:59 +00:00

neon_rmgr

Remove unused static function

2024-10-07 23:49:11 +03:00

neon_test_utils

refactor: Use same prototype for neon_read_at_lsn on all PG versions (#11457)

2025-04-07 11:04:36 +00:00

neon_utils

Be able to get number of CPUs (#3774)

2023-03-10 19:00:20 +02:00

neon_walredo

moving LastWrittenLSNCache to Neon Extension (#11031)

2025-03-19 17:29:40 +00:00

.dir-locals.el

Copy editor config for the neon extension from PostgreSQL (#8009)

2024-06-11 23:19:18 +03:00

.editorconfig

Copy editor config for the neon extension from PostgreSQL (#8009)

2024-06-11 23:19:18 +03:00

typedefs.list

Refotmat pgxn code, add typedefs.list that was used

2022-09-14 08:14:05 +03:00