Mercurial > hg > nginx
annotate docs/html/50x.html @ 8106:8852f39311de
Fixed segfault when switching off master process during upgrade.
Binary upgrades are not supported without master process, but it is,
however, possible, that nginx running with master process is asked
to upgrade binary, and the configuration file as available on disk
at this time includes "master_process off;".
If this happens, listening sockets inherited from the previous binary
will have ls[i].previous set. But the old cycle on initial process
startup, including startup after binary upgrade, is destroyed by
ngx_init_cycle() once configuration parsing is complete. As a result,
an attempt to dereference ls[i].previous in ngx_event_process_init()
accesses already freed memory.
Fix is to avoid looking into ls[i].previous if the old cycle is already
freed.
With this change it is also no longer needed to clear ls[i].previous in
worker processes, so the relevant code was removed.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 23 Nov 2022 23:48:53 +0300 |
parents | f2ddd0c491bf |
children |
rev | line source |
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4840
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
1 <!DOCTYPE html> |
657 | 2 <html> |
3 <head> | |
4840
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
4 <title>Error</title> |
657 | 5 <style> |
7903
f2ddd0c491bf
Dark mode support in welcome and 50x error pages.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7902
diff
changeset
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6 html { color-scheme: light dark; } |
7902
67c68cd973b8
Welcome and 50x error pages style.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7336
diff
changeset
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7 body { width: 35em; margin: 0 auto; |
67c68cd973b8
Welcome and 50x error pages style.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7336
diff
changeset
|
8 font-family: Tahoma, Verdana, Arial, sans-serif; } |
657 | 9 </style> |
10 </head> | |
4840
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
11 <body> |
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
12 <h1>An error occurred.</h1> |
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
13 <p>Sorry, the page you are looking for is currently unavailable.<br/> |
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
14 Please try again later.</p> |
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
15 <p>If you are the system administrator of this resource then you should check |
7336
1cd63ae46243
A link to the error_log directive on nginx.org removed.
Maxim Konovalov <maxim@nginx.com>
parents:
4840
diff
changeset
|
16 the error log for details.</p> |
4840
b5ba6f22a0fc
Improved 50x error page.
Valentin Bartenev <vbart@nginx.com>
parents:
663
diff
changeset
|
17 <p><em>Faithfully yours, nginx.</em></p> |
657 | 18 </body> |
19 </html> |