On Fri, 2023-08-18 at 00:47 +0300, Jarkko Sakkinen wrote: > On Fri Aug 18, 2023 at 12:09 AM EEST, Todd Brandt wrote: > > While testing S3 on 6.5.0-rc6 we've found that 5 systems are seeing > > a > > crash and reboot situation when S3 suspend is initiated. To > > reproduce > > it, this call is all that's required "sudo sleepgraph -m mem > > -rtcwake > > 15". > > 1. Are there logs available? > 2. Is this the test case: https://pypi.org/project/sleepgraph/ (never > used it before). There are no dmesg logs because the S3 crash wipes them out. Sleepgraph isn't actually necessary to activate it, just an S3 suspend "echo mem > /sys/power/state". So far it appears to only have affected test systems, not production hardware, and none of them have TPM chips, so I'm beginning to wonder if this patch just inadvertently activated a bug somewhere else in the kernel that happens to affect test hardware. I'll continue to debug it, this isn't an emergency as so far I haven't seen it in production hardware. > > I'll see if I can repeat it with QEMU + swtpm. > > > I’ve created a Bugzilla to track this issue here: > > https://bugzilla.kernel.org/show_bug.cgi?id=217804 > > Thank you for reporting this. > > BR, Jarkko
