Thread (38 messages) 38 messages, 7 authors, 4d ago

Re: [PATCH v4 01/11] seq_buf: Do not print an empty line from an overflowed seq_buf_do_printk()

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From: Kees Cook <kees@kernel.org>
Date: 2026-10-05 10:05:16
Also in: bpf, linux-doc, linux-hardening, linuxppc-dev, lkml, nvdimm

On Sat, Oct 03, 2026 at 04:50:50AM +0000, bot+bpf-ci@kernel.org wrote:
TL;DR: The new KUnit test may fail spuriously, and stop detecting the bug,
when console_loglevel suppresses KERN_INFO (quiet, loglevel=N) or
CONFIG_PRINTK=n, since the capture console never sees records.
That's a pointless state to handle: KUnit reports its own results at
KERN_INFO, so with a console that hides KERN_INFO, or with printk
compiled out, all of KUnit is unusable, not just this test.

-Kees

-- 
Kees Cook
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