SPARC locore problems

[abusalimov]

Код из основной ветки sparc (бывшая sparc-experimental) работает с ошибками.
Что-то не так с вложенными прерываниями.

[abusalimov]

Пока что переключаемся на код из старой ветки

Added arch:sparc label
Closed with status Fixed

[abusalimov]

Удалось воспроизвести на симуляторе

Reopened, status set to Started

[abusalimov]

Картинка, иллюстрирующая операции с окнами при выполнении теста irq_nesting:

           | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
126456315  |   |   |   |   | x |   |  <--  |  0000f6ac  9de3bf98  save %sp, -104, %sp
126456635  |   |   |   |   | x |   |  -->  |  00001018  9de3bf98  save %sp, -104, %sp
126457489  ->  |   |   |   | x |   |   |  ->  0000aaf4  9de3bf98  save %sp, -104, %sp
126457764  <-  |   |   |   | x |   |   |  <-  0000ab84  81e80000  restore
126457916  |   |   |   |   | x |   |  <--  |  00001110  81e80000  restore
126458138  |   |   |   |   | x |   |  -->  |  00001018  9de3bf98  save %sp, -104, %sp
126458206  ->  |   |   |   | x |   |   |  ->  0000aaf4  9de3bf98  save %sp, -104, %sp
126458235  <-  |   |   |   | x |   |   |  <-  0000ab84  81e80000  restore
126458247  |   |   |   |   | x |   |  <--  |  00001110  81e80000  restore
126458361  |   |   |   |   | x |   |  -->  |  0000acb0  9de3bf98  save %sp, -104, %sp
        0  ->  |   |   |   | x |   |   |  ->   <trap>    tt 0x1a  <int 10>
126458732  |  -->  |   |   | x |   |   |   |  00001234  9de3bf98  save %sp, -104, %sp
126459252  |   |  -->  |   | x |   |   |   |  0000f628  9de3bf98  save %sp, -104, %sp
126459410  |   |   |  -->  | x |   |   |   |  0000acb0  9de3bf98  save %sp, -104, %sp
        0  |   |   |   |  -->x |   |   |   |   <trap>    tt 0x1b  <int 11>
126459578  |   |   |   |   | x-->  |   |   |  0000b378  83e04003  save %g1, %g3, %g1
126459579  |   |   |   |   |   | x |   |   |  0000b37c  81904000  mov %g1, %wim
126459612  |   |   |   |   |  <--x |   |   |  0000b3a0  81e80000  restore
        0  |   |   |   |   |  -->x |   |   |   <trap>    tt 0x05  <wof>
126459726  |   |   |   |   |   | x-->  |   |  0000b494  83e04015  save %g1, %l5, %g1
126459727  |   |   |   |   |   |   | x |   |  0000b498  81904000  mov %g1, %wim
126459760  |   |   |   |   |   |  <--x |   |  0000b4bc  81e80000  restore
126459769  |   |   |   |   |  <--  | x |   |  0000b4d8  81cc8000  rett %l2
126459771  |   |   |   |   |  -->  | x |   |  00001234  9de3bf98  save %sp, -104, %sp
        0  |   |   |   |   |   |  -->x |   |   <trap>    tt 0x05  <wof>
126459937  |   |   |   |   |   |   | x-->  |  0000b494  83e04015  save %g1, %l5, %g1
126459938  |   |   |   |   |   |   |   | x |  0000b498  81904000  mov %g1, %wim
126459971  |   |   |   |   |   |   |  <--x |  0000b4bc  81e80000  restore
126459980  |   |   |   |   |   |  <--  | x |  0000b4d8  81cc8000  rett %l2
126459982  |   |   |   |   |   |  -->  | x |  0000f628  9de3bf98  save %sp, -104, %sp
126460288  |   |   |   |   |   |  <--  | x |  0000f6a8  91e82001  restore 1, %o0
126460307  |   |   |   |   |   |  -->  | x |  000011c8  9de3bf98  save %sp, -104, %sp
126460338  |   |   |   |   |   |  <--  | x |  00001230  81e80000  restore
126460343  |   |   |   |   |  <--  |   | x |  000012f4  81e80000  restore
126460650  |   |   |   |  <--  |   |   | x |  0000b17c  81cc8000  rett %l2
126460655  |   |   |  <--  |   |   |   | x |  0000ad40  81e80000  restore
126460812  |   |  <--  |   |   |   |   | x |  0000f6a8  91e82001  restore 1, %o0
126460828  |   |  -->  |   |   |   |   | x |  000011c8  9de3bf98  save %sp, -104, %sp
126460857  |   |   |  -->  |   |   |   | x |  00001564  9de3bf98  save %sp, -104, %sp
126460870  |   |   |  <--  |   |   |   | x |  0000158c  81e80000  restore
126460875  |   |  <--  |   |   |   |   | x |  00001230  81e80000  restore
126460880  |  <--  |   |   |   |   |   | x |  000012f4  81e80000  restore
126460976  |   |   |   |   |   |   |   |   |  0000b188  81904002  wr %g1, %g2, %wim
126461205  <-  |   |   |   |   |   |   |  <-  0000b1b4  81e80000  restore
126461362  ->  |   |   |   |   |   |   |  ->  0000b1d8  81e00000  save
126461366  <-  |   |   |   |   |   |   |  <-  0000b1e0  81cc8000  rett %l2
126461441  |   |   |   |   |   |   |  <--  |  0000ad40  81e80000  restore
126462414  |   |   |   |   |   |  <--  |   |  0000f798  81e80000  restore
126462419  |   |   |   |   |  <--  |   |   |  000012f4  81e80000  restore
126462674  |   |   | x |   |   |   |   |   |  0000b188  81904002  wr %g1, %g2, %wim
126462693  |   |   | x |  <--  |   |   |   |  0000b1b4  81e80000  restore
126462722  |   |   | x |  -->  |   |   |   |  0000b1d8  81e00000  save
126462726  |   |   | x |  <--  |   |   |   |  0000b1e0  81cc8000  rett %l2
        0  |   |   | x |  -->  |   |   |   |   <trap>    tt 0x06  <wuf>
126462870  |   | x |   |   |   |   |   |   |  0000b24c  81958015  wr %l6, %l5, %wim
126463022  |   | x |   |  <--  |   |   |   |  0000b274  81e80000  restore
126463023  |   | x |  <--  |   |   |   |   |  0000b278  81e80000  restore
126463484  |   | x |  -->  |   |   |   |   |  0000b29c  81e00000  save
126463485  |   | x |   |  -->  |   |   |   |  0000b2a0  81e00000  save
126463559  |   | x |   |  <--  |   |   |   |  0000b2a8  81cc8000  rett %l2
126463561  |   | x |  <--  |   |   |   |   |  0000ad40  81e80000  restore
        0  |   | x |  -->  |   |   |   |   |   <trap>    tt 0x09

В момент 126460976 ксорились одинаковые значения, и в WIM попадал 0.

[abusalimov]

Closed in e2829ef