view conf/koi-win @ 7969:84c60a3cd12a stable-1.20

Changed ngx_chain_update_chains() to test tag first (ticket #2248). Without this change, aio used with HTTP/2 can result in connection hang, as observed with "aio threads; aio_write on;" and proxying (ticket #2248). The problem is that HTTP/2 updates buffers outside of the output filters (notably, marks them as sent), and then posts a write event to call output filters. If a filter does not call the next one for some reason (for example, because of an AIO operation in progress), this might result in a state when the owner of a buffer already called ngx_chain_update_chains() and can reuse the buffer, while the same buffer is still sitting in the busy chain of some other filter. In the particular case a buffer was sitting in output chain's ctx->busy, and was reused by event pipe. Output chain's ctx->busy was permanently blocked by it, and this resulted in connection hang. Fix is to change ngx_chain_update_chains() to skip buffers from other modules unconditionally, without trying to wait for these buffers to become empty.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 30 Oct 2021 02:39:19 +0300
parents 400711951595
children
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charset_map  koi8-r  windows-1251 {

    80  88 ; # euro

    95  95 ; # bullet

    9A  A0 ; # &nbsp;

    9E  B7 ; # &middot;

    A3  B8 ; # small yo
    A4  BA ; # small Ukrainian ye

    A6  B3 ; # small Ukrainian i
    A7  BF ; # small Ukrainian yi

    AD  B4 ; # small Ukrainian soft g
    AE  A2 ; # small Byelorussian short u

    B0  B0 ; # &deg;

    B3  A8 ; # capital YO
    B4  AA ; # capital Ukrainian YE

    B6  B2 ; # capital Ukrainian I
    B7  AF ; # capital Ukrainian YI

    B9  B9 ; # numero sign

    BD  A5 ; # capital Ukrainian soft G
    BE  A1 ; # capital Byelorussian short U

    BF  A9 ; # (C)

    C0  FE ; # small yu
    C1  E0 ; # small a
    C2  E1 ; # small b
    C3  F6 ; # small ts
    C4  E4 ; # small d
    C5  E5 ; # small ye
    C6  F4 ; # small f
    C7  E3 ; # small g
    C8  F5 ; # small kh
    C9  E8 ; # small i
    CA  E9 ; # small j
    CB  EA ; # small k
    CC  EB ; # small l
    CD  EC ; # small m
    CE  ED ; # small n
    CF  EE ; # small o

    D0  EF ; # small p
    D1  FF ; # small ya
    D2  F0 ; # small r
    D3  F1 ; # small s
    D4  F2 ; # small t
    D5  F3 ; # small u
    D6  E6 ; # small zh
    D7  E2 ; # small v
    D8  FC ; # small soft sign
    D9  FB ; # small y
    DA  E7 ; # small z
    DB  F8 ; # small sh
    DC  FD ; # small e
    DD  F9 ; # small shch
    DE  F7 ; # small ch
    DF  FA ; # small hard sign

    E0  DE ; # capital YU
    E1  C0 ; # capital A
    E2  C1 ; # capital B
    E3  D6 ; # capital TS
    E4  C4 ; # capital D
    E5  C5 ; # capital YE
    E6  D4 ; # capital F
    E7  C3 ; # capital G
    E8  D5 ; # capital KH
    E9  C8 ; # capital I
    EA  C9 ; # capital J
    EB  CA ; # capital K
    EC  CB ; # capital L
    ED  CC ; # capital M
    EE  CD ; # capital N
    EF  CE ; # capital O

    F0  CF ; # capital P
    F1  DF ; # capital YA
    F2  D0 ; # capital R
    F3  D1 ; # capital S
    F4  D2 ; # capital T
    F5  D3 ; # capital U
    F6  C6 ; # capital ZH
    F7  C2 ; # capital V
    F8  DC ; # capital soft sign
    F9  DB ; # capital Y
    FA  C7 ; # capital Z
    FB  D8 ; # capital SH
    FC  DD ; # capital E
    FD  D9 ; # capital SHCH
    FE  D7 ; # capital CH
    FF  DA ; # capital hard sign
}