Bug 1219188 - [Build 20240123] kernel 6.7.1: splice07.c:54: TFAIL: splice() on /dev/zero -> pipe write end succeeded
Summary: [Build 20240123] kernel 6.7.1: splice07.c:54: TFAIL: splice() on /dev/zero ->...
Status: RESOLVED INVALID
Alias: None
Product: openSUSE Tumbleweed
Classification: openSUSE
Component: Kernel (show other bugs)
Version: Current
Hardware: Other Other
: P5 - None : Normal (vote)
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Assignee: openSUSE Kernel Bugs
QA Contact: E-mail List
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Reported: 2024-01-25 15:38 UTC by Petr Vorel
Modified: 2024-04-02 08:49 UTC (History)
4 users (show)

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Description Petr Vorel 2024-01-25 15:38:31 UTC 
Starting from build 20240123, which brought kernel 6.7 splice fail:

splice07.c:54: TFAIL: splice() on /dev/zero -> pipe write end succeeded

Jan, could you please have look whether it's a test bug or mainline kernel bug?

I can reproduce the problem also on mainline 6.8.0-rc1 (testing with rapido).
Comment 1 Martin Doucha 2024-01-25 16:17:25 UTC 
Note: splice() from /dev/zero to a writable pipe used to work on SLE kernels 4.4, 4.12 and 5.3. On kernels 5.14 and 6.4 it returns EINVAL.
Comment 2 Petr Vorel 2024-04-02 08:48:34 UTC 
On Tumbleweed kernel got fixed by LTP upstream commit
c04218579 ("splice07: Whitelist /dev/zero on pipe write")

https://github.com/linux-test-project/ltp/commit/c04218579773e3c7017a87d8bb121771e3e0f09c