Re: port binary dumping core on recent head in poudriere [tmpfs corruptions involving blocks of zeros that should not be all zeros]

On Nov 28, 2024, at 19:54, Sean C. Farley <scf@FreeBSD.org> wrote:

> On Thu, 28 Nov 2024, Mark Millard wrote:
> 
>> . . .
> 
>>> System setup:
>>> - FreeBSD 14.2-STABLE
>> 
>> The context that I investigated --and what was fixed by a commit only
>> applies to-- main [so; 15 as stands], not stable/14 .
>> 
>> stable/14 has no commits mentioning "tmpfs" after 2024-Jun-04.
> 
> Thank you.  That was my mistake.  I will continue searching for an answer.  Once I find a way to more consistently trigger it, it will be much easier.
> 
> I ran all of the tmpfs*.sh tests from HEAD which all pass except for tmpfs24.sh.

Did you notice:

Thu, 28 Nov 2024
   . . .
    • git: 2e2699c48a7e - main - stress2: Added new tmpfs test scenarios Peter Holm

that added:

    stress2: Added new tmpfs test scenarios
---
tools/test/stress2/misc/tmpfs26.sh | 179 +++++++++++++++++++++++++++++++++++++
tools/test/stress2/misc/tmpfs27.sh | 49 ++++++++++
tools/test/stress2/misc/tmpfs28.sh | 61 +++++++++++++
3 files changed, 289 insertions(+)

?

> $ ./all.sh -o tmpfs24.sh
> 20241128 22:33:38 all: tmpfs24.sh
> Min hole size is 4096, file size is 524288000.
> data #1 @ 0, size=4096)
> hole #2 @ 4096, size=4096
> data #3 @ 8192, size=4096)
> hole #4 @ 12288, size=4096
> data #5 @ 16384, size=4096)
> hole #6 @ 20480, size=524267520
> --- /tmp/tmpfs24.exp    2024-11-28 22:33:40.222199000 -0500
> +++ /tmp/tmpfs24.log    2024-11-28 22:33:40.225048000 -0500
> @@ -5,4 +5,3 @@
> hole #4 @ 12288, size=4096
> data #5 @ 16384, size=4096)
> hole #6 @ 20480, size=524267520
> -<<Missing EOF hole>>
> FAIL tmpfs24.sh exit code 1
> 
>>> . . .



===
Mark Millard
marklmi at yahoo.com