Date: Tue, 21 Aug 2018 11:29:56 +0000 (UTC) From: "Denis A. Konovalyenko" <denn_28@yahoo.com> To: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: Segfaults with more than 1 core active on Intel Core2 Duo CPU Message-ID: <27677493.1408567.1534850996965@mail.yahoo.com> References: <27677493.1408567.1534850996965.ref@mail.yahoo.com>
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[-- Attachment #1 --]
Hi everyone!
Since 8.0-R came out, FreeBSD has been present as a dual-boot citizen on my laptop (Lenovo ThinkPad SL510). And it worked fine with subsequent upgrades to 8.x and 9.x. However, after upgrades to 10.x (do not remember the exact version - most likely 10.1-R or 10.2-R), something caused my desktop applications with immense demands of resources (Firefox ESR, IntelliJ IDEA) to stop running sporadically with the segmentation faults (now these programs just die on lunching on 11.1-R). I thought that was related to some sort of UI libraries or Linux layer incompatibilities or kevent kernel support, so gave them new tries from time to time to figure out the cause.
As usual, this week I started my experiments with building a custom kernel (I found the generic one quite suitable for binary updates/upgrades) and revealed that "make depend" behaved the same way. Only that day I switched off multiple CPU cores support in BIOS and booted. That was remarkable! There was no a segfault on a single core after that!
Hence, my question is - does anybody know or have an idea of what might be the cause of segfaults with 2 CPU cores active? Also, I would really appreciate it if someone could give me some hints on how to pinpoint the issue.
Could you please find attached the outputs of "uname -a" and "dmesg" commands as well as my current loader.conf, rc.conf and sysctl.conf configuration files?
Best regards,
Denis
[-- Attachment #2 --]
Copyright (c) 1992-2017 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 11.1-RELEASE-p13 #0: Tue Aug 14 19:34:21 UTC 2018
root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on LLVM 4.0.0)
VT(vga): resolution 640x480
info: [drm] Initialized drm 1.1.0 20060810
CPU: Intel(R) Core(TM)2 Duo CPU T9900 @ 3.06GHz (3059.07-MHz K8-class CPU)
Origin="GenuineIntel" Id=0x1067a Family=0x6 Model=0x17 Stepping=10
Features=0xafebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE>
Features2=0xc08e3fd<SSE3,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,OSXSAVE>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
VT-x: HLT,PAUSE
TSC: P-state invariant, performance statistics
real memory = 8589934592 (8192 MB)
avail memory = 8096350208 (7721 MB)
Event timer "LAPIC" quality 100
ACPI APIC Table: <LENOVO TP-6J >
random: unblocking device.
ioapic0 <Version 2.0> irqs 0-23 on motherboard
Timecounter "TSC-low" frequency 1529535770 Hz quality 1000
Cuse v0.1.34 @ /dev/cuse
taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0
taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0
random: entropy device external interface
kbd1 at kbdmux0
netmap: loaded module
module_register_init: MOD_LOAD (vesa, 0xffffffff80f5ec60, 0) error 19
nexus0
vtvga0: <VT VGA driver> on motherboard
cryptosoft0: <software crypto> on motherboard
acpi0: <LENOVO TP-6J> on motherboard
acpi0: Power Button (fixed)
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 950
Event timer "HPET" frequency 14318180 Hz quality 450
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
Event timer "HPET3" frequency 14318180 Hz quality 440
cpu0: <ACPI CPU> on acpi0
atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0
atrtc0: Warning: Couldn't map I/O.
Event timer "RTC" frequency 32768 Hz quality 0
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
acpi_ec0: <Embedded Controller: GPE 0x17> port 0x62,0x66 on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x1800-0x1807 mem 0xf2400000-0xf27fffff,0xd0000000-0xdfffffff irq 16 at device 2.0 on pci0
agp0: <Intel GM45 SVGA controller> on vgapci0
agp0: aperture size is 256M, detected 131068k stolen memory
drmn0: <Mobile Intel® GM45 Express Chipset> on vgapci0
info: [drm] MTRR allocation failed. Graphics performance may suffer.
intel_iicbb0 on drmn0
iicbus0: <Philips I2C bus> on iicbb0 addr 0xff
iic0: <I2C generic I/O> on iicbus0
iicbus1: <Philips I2C bus> on intel_gmbus0
iic1: <I2C generic I/O> on iicbus1
intel_iicbb1 on drmn0
iicbus2: <Philips I2C bus> on iicbb1 addr 0xff
iic2: <I2C generic I/O> on iicbus2
iicbus3: <Philips I2C bus> on intel_gmbus1
iic3: <I2C generic I/O> on iicbus3
intel_iicbb2 on drmn0
iicbus4: <Philips I2C bus> on iicbb2 addr 0xff
iic4: <I2C generic I/O> on iicbus4
iicbus5: <Philips I2C bus> on intel_gmbus2
iic5: <I2C generic I/O> on iicbus5
intel_iicbb3 on drmn0
iicbus6: <Philips I2C bus> on iicbb3 addr 0xff
iic6: <I2C generic I/O> on iicbus6
iicbus7: <Philips I2C bus> on intel_gmbus3
iic7: <I2C generic I/O> on iicbus7
intel_iicbb4 on drmn0
iicbus8: <Philips I2C bus> on iicbb4 addr 0xff
iic8: <I2C generic I/O> on iicbus8
iicbus9: <Philips I2C bus> on intel_gmbus4
iic9: <I2C generic I/O> on iicbus9
intel_iicbb5 on drmn0
iicbus10: <Philips I2C bus> on iicbb5 addr 0xff
iic10: <I2C generic I/O> on iicbus10
iicbus11: <Philips I2C bus> on intel_gmbus5
iic11: <I2C generic I/O> on iicbus11
info: [drm] MSI enabled 1 message(s)
info: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
info: [drm] Driver supports precise vblank timestamp query.
intel_sdvo_ddc_proxy397632 on drmn0
intel_sdvo_ddc_proxy397632: detached
drm_iic_dp_aux0 on drmn0
intel_sdvo_ddc_proxy397664 on drmn0
intel_sdvo_ddc_proxy397664: detached
drm_iic_dp_aux1 on drmn0
drmn0: taking over the fictitious range 0xd0000000-0xe0000000
info: [drm] Connector LVDS-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.LVDS-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector VGA-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.VGA-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector HDMI-A-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.HDMI-A-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector DP-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.DP-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector DP-2: get mode from tunables:
info: [drm] - kern.vt.fb.modes.DP-2
info: [drm] - kern.vt.fb.default_mode
fbd0 on drmn0
VT: Replacing driver "vga" with new "fb".
info: [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0
vgapci0: Boot video device
vgapci1: <VGA-compatible display> mem 0xf2100000-0xf21fffff at device 2.1 on pci0
uhci0: <Intel 82801I (ICH9) USB controller> port 0x1820-0x183f irq 16 at device 26.0 on pci0
usbus0 on uhci0
uhci1: <Intel 82801I (ICH9) USB controller> port 0x1840-0x185f irq 21 at device 26.1 on pci0
usbus1 on uhci1
uhci2: <Intel 82801I (ICH9) USB controller> port 0x1860-0x187f irq 19 at device 26.2 on pci0
usbus2 on uhci2
ehci0: <Intel 82801I (ICH9) USB 2.0 controller> mem 0xf2a04800-0xf2a04bff irq 19 at device 26.7 on pci0
usbus3: EHCI version 1.0
usbus3 on ehci0
hdac0: <Intel 82801I HDA Controller> mem 0xf2a00000-0xf2a03fff irq 22 at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0
pcib1: [GIANT-LOCKED]
pci1: <ACPI PCI bus> on pcib1
sdhci_pci0: <JMicron JMB38X SD> mem 0xf2300400-0xf23004ff irq 16 at device 0.2 on pci1
sdhci_pci0: 1 slot(s) allocated
pcib2: <ACPI PCI-PCI bridge> irq 16 at device 28.1 on pci0
pcib2: [GIANT-LOCKED]
pcib3: <ACPI PCI-PCI bridge> irq 18 at device 28.2 on pci0
pcib3: [GIANT-LOCKED]
pcib4: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
pcib4: [GIANT-LOCKED]
pci2: <ACPI PCI bus> on pcib4
iwn0: <Intel Centrino Wireless-N 1000> mem 0xf2200000-0xf2201fff irq 19 at device 0.0 on pci2
pcib5: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0
pcib5: [GIANT-LOCKED]
pcib6: <ACPI PCI-PCI bridge> irq 16 at device 28.5 on pci0
pcib6: [GIANT-LOCKED]
pci3: <ACPI PCI bus> on pcib6
re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port 0x3000-0x30ff mem 0xf2004000-0xf2004fff,0xf2000000-0xf2003fff irq 17 at device 0.0 on pci3
re0: Using 1 MSI-X message
re0: ASPM disabled
re0: Chip rev. 0x28000000
re0: MAC rev. 0x00100000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 60:eb:69:93:d1:09
re0: netmap queues/slots: TX 1/256, RX 1/256
uhci3: <Intel 82801I (ICH9) USB controller> port 0x1880-0x189f irq 23 at device 29.0 on pci0
usbus4 on uhci3
uhci4: <Intel 82801I (ICH9) USB controller> port 0x18a0-0x18bf irq 19 at device 29.1 on pci0
usbus5 on uhci4
uhci5: <Intel 82801I (ICH9) USB controller> port 0x18c0-0x18df irq 18 at device 29.2 on pci0
usbus6 on uhci5
ehci1: <Intel 82801I (ICH9) USB 2.0 controller> mem 0xf2a04c00-0xf2a04fff irq 23 at device 29.7 on pci0
usbus7: EHCI version 1.0
usbus7 on ehci1
pcib7: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci4: <ACPI PCI bus> on pcib7
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
ahci0: <Intel ICH9M AHCI SATA controller> port 0x1818-0x181f,0x180c-0x180f,0x1810-0x1817,0x1808-0x180b,0x18e0-0x18ff mem 0xf2a04000-0xf2a047ff irq 19 at device 31.2 on pci0
ahci0: AHCI v1.20 with 4 3Gbps ports, Port Multiplier not supported
ahcich0: <AHCI channel> at channel 0 on ahci0
ahcich1: <AHCI channel> at channel 1 on ahci0
ahcich4: <AHCI channel> at channel 4 on ahci0
ahcich5: <AHCI channel> at channel 5 on ahci0
ahciem0: <AHCI enclosure management bridge> on ahci0
ichsmb0: <Intel 82801I (ICH9) SMBus controller> port 0x1c00-0x1c1f irq 19 at device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0
smb0: <SMBus generic I/O> on smbus0
acpi_acad0: <AC Adapter> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
acpi_tz0: <Thermal Zone> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Synaptics Touchpad, device ID 0
acpi_ibm0: <IBM ThinkPad ACPI Extras> on acpi0
orm0: <ISA Option ROMs> at iomem 0xe0000-0xe1fff,0xe2000-0xe37ff on isa0
ppc0: cannot reserve I/O port range
est0: <Enhanced SpeedStep Frequency Control> on cpu0
fuse-freebsd: version 0.4.4, FUSE ABI 7.8
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
Timecounters tick every 1.000 msec
nvme cam probe device init
hdacc0: <Realtek ALC269 HDA CODEC> at cad 0 on hdac0
hdaa0: <Realtek ALC269 Audio Function Group> at nid 1 on hdacc0
pcm0: <Realtek ALC269 (Analog 2.0+HP/2.0)> at nid 20,21 and 18 on hdaa0
pcm1: <Realtek ALC269 (Rear Analog Mic)> at nid 24 on hdaa0
hdacc1: <Intel Cantiga HDA CODEC> at cad 3 on hdac0
hdaa1: <Intel Cantiga Audio Function Group> at nid 1 on hdacc1
pcm2: <Intel Cantiga (HDMI 8ch)> at nid 3 on hdaa1
usbus0: 12Mbps Full Speed USB v1.0
usbus1: 12Mbps Full Speed USB v1.0
usbus2: 12Mbps Full Speed USB v1.0
usbus3: 480Mbps High Speed USB v2.0
usbus4: 12Mbps Full Speed USB v1.0
usbus5: 12Mbps Full Speed USB v1.0
usbus6: 12Mbps Full Speed USB v1.0
usbus7: 480Mbps High Speed USB v2.0
ugen7.1: <Intel EHCI root HUB> at usbus7
uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus7
ugen6.1: <Intel UHCI root HUB> at usbus6
uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6
ugen5.1: <Intel UHCI root HUB> at usbus5
uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus5
ugen4.1: <Intel UHCI root HUB> at usbus4
uhub3: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
ugen3.1: <Intel EHCI root HUB> at usbus3
uhub4: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus3
ugen2.1: <Intel UHCI root HUB> at usbus2
uhub5: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
ugen1.1: <Intel UHCI root HUB> at usbus1
uhub6: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
ugen0.1: <Intel UHCI root HUB> at usbus0
uhub7: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
uhub2: 2 ports with 2 removable, self powered
uhub1: 2 ports with 2 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub6: 2 ports with 2 removable, self powered
uhub5: 2 ports with 2 removable, self powered
uhub7: 2 ports with 2 removable, self powered
ses0 at ahciem0 bus 0 scbus4 target 0 lun 0
ses0: <AHCI SGPIO Enclosure 1.00 0001> SEMB S-E-S 2.00 device
ses0: SEMB SES Device
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <P3-128 1.00> ACS-4 ATA SATA 3.x device
ada0: Serial Number 087091861368
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 122104MB (250069680 512 byte sectors)
ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
ada1: <KINGSTON SV300S37A120G 60AABBF0> ATA8-ACS SATA 3.x device
ada1: Serial Number 50026B766A012040
ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 512bytes)
ada1: Command Queueing enabled
ada1: 114473MB (234441648 512 byte sectors)
Trying to mount root from zfs:zm []...
Root mount waiting for: usbus7 usbus3
Root mount waiting for: usbus7 usbus3
uhub4: 6 ports with 6 removable, self powered
uhub0: 6 ports with 6 removable, self powered
usb_alloc_device: set address 2 failed (USB_ERR_IOERROR, ignored)
Root mount waiting for: usbus7
Root mount waiting for: usbus7
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
Root mount waiting for: usbus7
ugen7.2: <SuYin Integrated Camera> at usbus7
wlan0: Ethernet address: 00:26:c7:7d:69:b2
bridge0: Ethernet address: 02:78:e3:a6:45:00
re0: link state changed to DOWN
iwn0: iwn_read_firmware: ucode rev=0x271f0501
wlan0: link state changed to UP
WARNING: attempt to domain_add(bluetooth) after domainfinalize()
[-- Attachment #3 --]
FreeBSD denis 11.1-RELEASE-p13 FreeBSD 11.1-RELEASE-p13 #0: Tue Aug 14 19:34:21 UTC 2018 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
[-- Attachment #4 --]
#ahci_load="YES"
zfs_load="YES"
vfs.zfs.prefetch_disable="0"
vfs.root.mountfrom="zfs:zm"
fuse_load="YES"
#cuse4bsd_load="YES" # FreeBSD < 11.x, package from ports cuse_load="YES"
cuse_load="YES" # FreeBSD >= 11.x, part of default kernel build
cpufreq_enable="YES"
acpi_ibm_load="YES"
snd_hda_load="YES"
ichsmb_load="YES"
smb_load="YES"
##if_iwn_load="YES"
##iwn1000fw_load="YES"
sdhci_load="YES"
#ng_ubt_load="YES"
#ng_hci_load="YES"
#ng_netgraph_load="YES"
linux_load="YES"
if_tap_load="YES"
#vboxdrv_load="YES"
hw.psm.synaptics_support="1"
hw.psm.trackpoint_support="1"
#kern.ipc.semmns="32000"
#kern.ipc.semmni="128"
#kern.ipc.shmmni="4096"
vm.kmem_size="512M"
vm.kmem_size_max="512M"
vfs.zfs.arc_max="160M"
vfs.zfs.vdev.cache.size="5M"
i915kms_load="YES"
kern.vty=vt
#hw.vga.textmode=1
#kern.vt.fb.default_mode="1024x768"
beastie_disable="YES"
loader_logo="none"
[-- Attachment #5 --]
hostname="denis"
zfs_enable="YES"
fusefs_enable="YES"
#kqemu_enable="YES"
linux_enable="YES"
devd_enable="YES"
devfs_system_ruleset="devfsrules_common"
moused_enable="YES"
powerd_enable="YES"
powerd_flags="-a hiadaptive -b adaptive"
usbd_enable="YES"
dbus_enable="YES"
#hald_enable="YES"
webcamd_enable="YES"
dumpdev="NO"
clear_tmp_enable="YES"
syslogd_flags="-ss"
keybell="quiet.off"
keyrate="fast"
blanktime="300"
saver="green"
#scrnmap="koi8-r2cp866"
#keymap="ru.koi8-r.win"
#font8x16="cp866-8x16"
#font8x14="cp866-8x14"
#font8x8="cp866-8x8"
hcsecd_enable="YES"
#rfcomm_pppd_server_enable="YES"
#rfcomm_pppd_server_profile="rfcomm-dailup"
#rfcomm_pppd_server_rfcomm-dailup_register_dun="YES"
#pf_enable="YES"
#pf_rules="/etc/pf.conf"
#pf_flags=""
#pflog_enable="YES"
#pflog_logfile="/var/log/pf.log"
#pflog_flags=""
cloned_interfaces="bridge0"
autobridge_interfaces="bridge0"
autobridge_bridge0="tap*"
ifconfig_bridge0="inet 192.168.1.254 netmask 255.255.255.0"
#static_routes="internalnet1"
#route_internalnet1="-net 192.168.1.0/24 192.168.1.254"
ifconfig_re0="DHCP"
wlans_iwn0="wlan0"
ifconfig_wlan0="WPA SYNCDHCP"
openvpn_if="tap"
gateway_enable="YES"
#firewall_enable="YES"
#firewall_type="OPEN"
#firewall_type="CLIENT"
#firewall_client_net="192.168.0.0/24"
#natd_enable="YES"
#natd_interface="re0"
#natd_flags=""
sshd_enable="YES"
ntpd_enable="YES"
ntpd_sync_on_start="YES"
#inetd_enable="YES"
#cnupm_enable="YES"
#cnupm_iface="tun0"
#cnupm_flags="-a 1 -epD -f inet -u cnupm"
#dhcpd_enable="YES"
#dhcpd_ifaces=""
#ziproxy_enable="YES"
sendmail_enable="NONE"
#postgresql_enable="YES"
#mysql_enable="YES"
#apache24_enable="YES"
[-- Attachment #6 --]
# $FreeBSD: releng/11.1/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux $
#
# This file is read when going to multi-user and its contents piped thru
# ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details.
#
# Uncomment this to prevent users from seeing information about processes that
# are being run under another UID.
#security.bsd.see_other_uids=0
hw.psm.synaptics.two_finger_scroll=0
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