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From: Andres Freund <[email protected]>
To: [email protected]
Cc: Nazir Bilal Yavuz <[email protected]>
Cc: Thomas Munro <[email protected]>
Subject: Re: pltcl tests fail with FreeBSD 13.2
Date: Mon, 31 Jul 2023 12:36:59 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Hi,

On 2023-07-31 12:15:10 -0700, Andres Freund wrote:
> It sure looks like freebsd 13.2 tcl is just busted. Notably it can't even
> parse what it generates:
> 
> echo 'puts [clock scan [clock format [clock seconds] -format "%Y/%m/%d"] -format "%Y/%m/%d"]'|tclsh8.6
> 
> Which works on 13.1 (and other operating systems), without a problem.
> 
> I used truss as a very basic way to see differences between 13.1 and 13.2 -
> the big difference was .2 failing just after
> access("/etc/localtime",F_OK)			 ERR#2 'No such file or directory'
> open("/etc/localtime",O_RDONLY,077)		 ERR#2 'No such file or directory'
> 
> whereas 13.1 also saw that, but then continued to
> 
> issetugid()					 = 0 (0x0)
> open("/usr/share/zoneinfo/UTC",O_RDONLY,00)	 = 3 (0x3)
> fstat(3,{ mode=-r--r--r-- ,inode=351417,size=118,blksize=32768 }) = 0 (0x0)
> ...
> 
> which made me test specifying the timezone explicitly:
> echo 'puts [clock scan [clock format [clock seconds] -format "%Y/%m/%d" -timezone "UTC"] -format "%Y/%m/%d" -timezone "UTC"]'|tclsh8.6
> 
> Which, surprise, works.
> 
> So does specifying the timezone via the TZ='UTC' environment variable.
> 
> 
> I guess there could be a libc behaviour change or such around timezones? I do
> see
> https://www.freebsd.org/releases/13.2R/relnotes/
> "tzcode has been upgraded to version 2022g with improved timezone change detection and reliability fixes."

One additional datapoint: If I configure the timezone with "tzsetup" (which
creates /etc/localtime), the problem vanishes as well.

Greetings,

Andres Freund

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