[Bug 266656] tuning(7): with some variations from default sysctl values, starts of mail/thunderbird are slow, and kernel panics may occur

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266656

Graham Perrin <grahamperrin@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gecko@FreeBSD.org
            Summary|crash system with           |tuning(7): with some
                   |thunderbird                 |variations from default
                   |                            |sysctl values, starts of
                   |                            |mail/thunderbird are slow,
                   |                            |and kernel panics may occur

--- Comment #12 from Graham Perrin <grahamperrin@freebsd.org> ---
Please attach outputs from: 

pkg query -e '%a = 0' '%o %v %R' | sort
pkg query -x '%n %v' 'drm.*kmod' ; pkg query -x '%n %v' 'gpu-.*kmod'


(In reply to Gian-Simon Purkert from comment #0)

> Somewhere on the "net" i read that those sysctl's are "good" for Desktop usage. …

> kern.sched.preempt_thresh=224
> kern.sched.slice=3
> kern.ipc.shm_allow_removed=1
> kern.ipc.shm_use_phys=1
> 
> …

Elsewhere on the web: for one of the non-default values, I'm aware of at least
one guide that specifically refrains from using the non-default value, in an
environment that may be commonly associated with desktop usage. 

I hesitate before referencing or quoting here, because Bugzilla may be not
well-suited to tuning-related discussions …


(In reply to Gian-Simon Purkert from comment #5)

Extracted, sorted, lightly annotated: 

acpi_ibm.ko
acpi_wmi.ko
cd9660_iconv.ko
coretemp.ko
cpuctl.ko
cuse.ko
dmabuf.ko
drm.ko
fdescfs.ko
fusefs.ko
geom_eli.ko
hidbus.ko
i915kms.ko
ichsmb.ko
if_iwlwifi.ko        <==
if_iwm.ko            <==
iwm7265Dfw.ko        <==
kernel
libiconv.ko
linux_common.ko
linux.ko
linux64.ko
linuxkpi_gplv2.ko
mac_ntpd.ko
msdosfs_iconv.ko
netgraph.ko
ng_bluetooth.ko
ng_hci.ko
ng_ubt.ko
pchtherm.ko
sem.ko
smbus.ko
udf_iconv.ko
udf.ko
uhid.ko
ums.ko
usbhid.ko
wmt.ko

----

With your (comment 1) use of 13.1-RELEASE-p2 – without rushing to any
conclusion (in the absence of information from a core dump) – 13.1-RELEASE
-specific
<https://www.freebsd.org/cgi/man.cgi?query=iwlwifi&sektion=4&manpath=FreeBSD+13.1-RELEASE#BUGS>
observes: 

> BUGS
>      Certainly.

Do you subscribe to freebsd-wireless? 

<https://lists.freebsd.org/>

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