[adding Chih-Kang Chang (author), Kalle (committer) and LKML to the list of recipients]

[anyone who replies to this: feel free to remove stable@vger.kernel.org from the recipients, this is a mainline regression]

[TLDR: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form. See link in footer if these mails annoy you.]

On 09.02.23 20:59, Paul Gover wrote:

Suspend/Resume was working OK on kernel 6.0.13, broken since 6.1.1 (I've not tried kernels between those, except in the bisect below.) All subsequent 6,1 kernels exhibit the same behaviour.

Suspend works OK, but on Resume, there's a flicker, and then it reboots. Sometimes the screen gets restored to its contents at the time of suspend. but less than a second later, it starts rebooting. To reproduce, simply boot, suspend, and resume.

Git bisect blames RTW88 commit 6bf3a083407b5d404d70efc3a5ac75b472e5efa9

TWIMC, that's "wifi: rtw88: add flag check before enter or leave IPS"

I'll attach bisect log, dmesg and configs to the bug I've opened https://bugzilla.kernel.org/show_bug.cgi?id=217016

dmesg from the following boot show a hardware error. It's not there when the system resumes or reboots with 6.0.13, and if I don't suspend & resume, there are no reported errors.

The problem occurs under both Wayland and X11, and from the command line via echo mem>/sys/power.state

Vanilla kernels, untainted, compiled with GCC; my system is Gentoo FWIW, but I do my own kernels direct from a git clone of stable.

Couldn't find anything similar with Google or the mailing lists.

**Hardware:**

HP Laptop 15-bw0xx AMD A9-9420 RADEON R5, 5 COMPUTE CORES Stoney [Radeon R2/R3/R4/R5 Graphics] 4 GB memory RTL8723DE PCIe adapter

**Kernel**

Kernel command line: psmouse.synaptics_intertouch=1 pcie_aspm=force rdrand=force rootfstype=f2fs root=LABEL=gentoo

CONFIG_RTW88=m CONFIG_RTW88_CORE=m CONFIG_RTW88_PCI=m CONFIG_RTW88_8723D=m # CONFIG_RTW88_8822BE is not set # CONFIG_RTW88_8822CE is not set CONFIG_RTW88_8723DE=m # CONFIG_RTW88_8821CE is not set # CONFIG_RTW88_DEBUG is not set # CONFIG_RTW88_DEBUGFS is not set # CONFIG_RTW89 is not set

Thanks for the report. To be sure the issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot:

#regzbot ^introduced 6bf3a083407b #regzbot title wifi: rtw88: resume broken (reboot) #regzbot ignore-activity

This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply and tell me -- ideally while also telling regzbot about it, as explained by the page listed in the footer of this mail.

Developers: When fixing the issue, remember to add 'Link:' tags pointing to the report (the parent of this mail). See page linked in footer for details.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page.