* [ANN] yahns 1.18.0 -_-
@ 2021-10-09 8:37 6% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2021-10-09 8:37 UTC (permalink / raw)
To: yahns-public
Some minor updates and fixes, mainly to workaround for a
(now-fixed upstream) Linux kernel bug. I doubt anybody
uses this, yet, or ever will at this point...
Changes:
8 changes since 1.17.0 (2019-04-22):
worker: workaround old F_SETPIPE_SZ bug
doc: favor File.read over IO.read to ease review
proxy_pass: document as a public API
doc: include Yahns/ directory on website
extras/try_gzip_static: set "Vary: Accept-Encoding" on gzip
do not sleep if signals are pending
server: workaround Linux v5.5..v5.13 epoll bug
gemspec: allow unicorn 6.x
* homepage: https://yhbt.net/yahns/
* git clone https://yhbt.net/yahns.git
*zzzzzzzz*
^ permalink raw reply [relevance 6%]
* [PATCH] worker: workaround old F_SETPIPE_SZ bug
@ 2019-05-04 16:34 7% Eric Wong
0 siblings, 0 replies; 2+ results
From: Eric Wong @ 2019-05-04 16:34 UTC (permalink / raw)
To: yahns-public
Linux before 4.9 (and before 3.16.57) failed to account
for the existing size of a pipe before checking system
resource limits and would return EPERM in that case.
https://80x24.org/mirrors/linux.git/commit?id=b0b91d18e2e97b741b294af9333824ecc3fadfd8
https://lore.kernel.org/lkml/?q=s%3A%22fix+limit+checking+in+pipe_set_size%22
Based on a patch by Stephen Demjanenko for unicorn:
https://bogomips.org/unicorn-public/1556922018-24096-1-git-send-email-sdemjanenko@gmail.com/
---
lib/yahns/worker.rb | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/yahns/worker.rb b/lib/yahns/worker.rb
index 0355629..ec5be23 100644
--- a/lib/yahns/worker.rb
+++ b/lib/yahns/worker.rb
@@ -14,8 +14,8 @@ def initialize(nr)
# F_SETPIPE_SZ = 1031, PAGE_SIZE = 4096
# (fcntl will handle minimum size on platforms where PAGE_SIZE > 4096)
@to_io.fcntl(1031, 4096)
- rescue Errno::EINVAL
- # old kernel
+ rescue SystemCallError
+ # old kernel (EINVAL, EPERM)
end if RUBY_PLATFORM =~ /\blinux\b/
end
--
EW
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2019-05-04 16:34 7% [PATCH] worker: workaround old F_SETPIPE_SZ bug Eric Wong
2021-10-09 8:37 6% [ANN] yahns 1.18.0 -_- Eric Wong
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