Latest iwm firmware disconnects and requires a /bin/sh /etc/netstart iwm0 to reconnect

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Latest iwm firmware disconnects and requires a /bin/sh /etc/netstart iwm0 to reconnect

John Batteen
Possibly initiated by moving to a new access point.  Thinkpad T550, Intel AC 7265

/etc/hostname.iwm0:
nwid mynet wpakey mykey
dhcp

dmesg:
OpenBSD 6.9-current (GENERIC.MP) #57: Mon Jun  7 14:04:52 MDT 2021
     [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 12549574656 (11968MB)
avail mem = 12153782272 (11590MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xacbfd000 (65 entries)
bios0: vendor LENOVO version "N11ET34W (1.10 )" date 08/20/2015
bios0: LENOVO 20CJS1ET00
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC ASF! HPET ECDT APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT SSDT PCCT SSDT UEFI MSDM BATB FPDT UEFI DMAR
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpiec0 at acpi0
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz, 2195.28 MHz, 06-3d-04
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,PT,SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz, 2194.93 MHz, 06-3d-04
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,PT,SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz, 2194.94 MHz, 06-3d-04
cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,PT,SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz, 2194.93 MHz, 06-3d-04
cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,TSC_ADJUST,BMI1,HLE,AVX2,SMEP,BMI2,ERMS,INVPCID,RTM,RDSEED,ADX,SMAP,PT,SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus -1 (EXP3)
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
acpicmos0 at acpi0
acpibat0 at acpi0: BAT0 model "45N1743" serial  2312 type LiP oem "SONY"
acpibat1 at acpi0: BAT1 model "45N1777" serial   590 type LION oem "SANYO"
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0: version 1.0
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT340F" at acpi0 not configured
acpicpu0 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1
acpipwrres1 at acpi0: NVP3, resource for PEG_
acpipwrres2 at acpi0: NVP2, resource for PEG_
acpitz0 at acpi0: critical temperature is 103 degC
acpivideo0 at acpi0: VID_
acpivout0 at acpivideo0: LCD0
acpivideo1 at acpi0: VID_
cpu0: using VERW MDS workaround (except on vmm entry)
cpu0: Enhanced SpeedStep 2195 MHz: speeds: 2301, 2300, 2200, 2000, 1900, 1800, 1700, 1500, 1400, 1300, 1100, 1000, 900, 800, 600, 500 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 5G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 5500" rev 0x09
drm0 at inteldrm0
inteldrm0: msi, BROADWELL, gen 8
azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi
azalia0: No codecs found
xhci0 at pci0 dev 20 function 0 "Intel 9 Series xHCI" rev 0x03: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 addr 1
"Intel 9 Series MEI" rev 0x03 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x03: msi, address 54:ee:75:8f:cb:c1
azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: msi
azalia1: codecs: Realtek ALC292
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 9 Series PCIE" rev 0xe3: msi
pci1 at ppb0 bus 2
rtsx0 at pci1 dev 0 function 0 "Realtek RTS5227 Card Reader" rev 0x01: msi
sdmmc0 at rtsx0: 4-bit, dma
ppb1 at pci0 dev 28 function 1 "Intel 9 Series PCIE" rev 0xe3: msi
pci2 at ppb1 bus 3
iwm0 at pci2 dev 0 function 0 "Intel AC 7265" rev 0x99, msi
ehci0 at pci0 dev 29 function 0 "Intel 9 Series USB" rev 0x03: apic 2 int 23
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel 9 Series LPC" rev 0x03
ahci0 at pci0 dev 31 function 2 "Intel 9 Series AHCI" rev 0x03: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 6.0Gb/s
ahci0: port 2: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, SAMSUNG MZ7LN256, EMT0> naa.5002538d00000000
sd0: 244198MB, 512 bytes/sector, 500118192 sectors, thin
sd1 at scsibus1 targ 1 lun 0: <ATA, SATA SSD, SBFM> naa.0000000000000000
sd1: 30533MB, 512 bytes/sector, 62533296 sectors, thin
sd2 at scsibus1 targ 2 lun 0: <ATA, 120GB SATA Flash, SFPA> naa.0000000000000000
sd2: 114473MB, 512 bytes/sector, 234441648 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 9 Series SMBus" rev 0x03: apic 2 int 18
iic0 at ichiic0
pchtemp0 at pci0 dev 31 function 6 "Intel 9 Series Thermal" rev 0x03
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.1, 0x1e2b1 0x943300 0x2fed40 0xf003a3 0x12e800
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
dt: 445 probes
ugen0 at uhub0 port 7 "Intel Bluetooth" rev 2.01/0.01 addr 2
uvideo0 at uhub0 port 8 configuration 1 interface 0 "Chicony Electronics Co.,Ltd. Integrated Camera" rev 2.00/0.44 addr 3
video0 at uvideo0
uhub2 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 2.00/0.03 addr 2
sdmmc0: can't enable card
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (1d90a5d9338f5066.a) swap on sd0b dump on sd0b
inteldrm0: 1366x768, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
iwm0: hw rev 0x210, fw ver 17.3216344376.0, address 18:5e:0f:ea:ff:c4
iwm0: Could not empty Tx queues (error 35)
driver status:
   tx ring  0: qid=0  cur=166 queued=0
   tx ring  1: qid=1  cur=0   queued=0
   tx ring  2: qid=2  cur=0   queued=0
   tx ring  3: qid=3  cur=0   queued=0
   tx ring  4: qid=4  cur=0   queued=0
   tx ring  5: qid=5  cur=12  queued=0
   tx ring  6: qid=6  cur=0   queued=0
   tx ring  7: qid=7  cur=0   queued=0
   tx ring  8: qid=8  cur=0   queued=0
   tx ring  9: qid=9  cur=0   queued=0
   tx ring 10: qid=10 cur=142 queued=2
   tx ring 11: qid=11 cur=0   queued=0
   tx ring 12: qid=12 cur=0   queued=0
   tx ring 13: qid=13 cur=0   queued=0
   tx ring 14: qid=14 cur=0   queued=0
   tx ring 15: qid=15 cur=0   queued=0
   tx ring 16: qid=16 cur=0   queued=0
   tx ring 17: qid=17 cur=0   queued=0
   tx ring 18: qid=18 cur=0   queued=0
   tx ring 19: qid=19 cur=0   queued=0
   tx ring 20: qid=20 cur=0   queued=0
   tx ring 21: qid=21 cur=0   queued=0
   tx ring 22: qid=22 cur=0   queued=0
   tx ring 23: qid=23 cur=0   queued=0
   tx ring 24: qid=24 cur=0   queued=0
   tx ring 25: qid=25 cur=0   queued=0
   tx ring 26: qid=26 cur=0   queued=0
   tx ring 27: qid=27 cur=0   queued=0
   tx ring 28: qid=28 cur=0   queued=0
   tx ring 29: qid=29 cur=0   queued=0
   tx ring 30: qid=30 cur=0   queued=0
   rx ring: cur=131
   802.11 state RUN
iwm0: dumping device error log
iwm0: Start Error Log Dump:
iwm0: Status: 0x5, count: 6
iwm0: 0x0000341C | ADVANCED_SYSASSERT
iwm0: 00A002F0 | trm_hw_status0
iwm0: 00000000 | trm_hw_status1
iwm0: 00000B38 | branchlink2
iwm0: 0001978C | interruptlink1
iwm0: 00000000 | interruptlink2
iwm0: 00000005 | data1
iwm0: 00000000 | data2
iwm0: DEADBEEF | data3
iwm0: 91803254 | beacon time
iwm0: 89852DBC | tsf low
iwm0: 00000108 | tsf hi
iwm0: 00000000 | time gp1
iwm0: D523CE5D | time gp2
iwm0: 00000000 | uCode revision type
iwm0: 00000011 | uCode version major
iwm0: BFB58538 | uCode version minor
iwm0: 00000210 | hw version
iwm0: 00089000 | board version
iwm0: 00990028 | hcmd
iwm0: 00022080 | isr0
iwm0: 00000000 | isr1
iwm0: 00000002 | isr2
iwm0: 004178C0 | isr3
iwm0: 00000000 | isr4
iwm0: 01000112 | last cmd Id
iwm0: 00000000 | wait_event
iwm0: 00009E5F | l2p_control
iwm0: 00000020 | l2p_duration
iwm0: 00000003 | l2p_mhvalid
iwm0: 000000EE | l2p_addr_match
iwm0: 00000005 | lmpm_pmg_sel
iwm0: 15041745 | timestamp
iwm0: 00002830 | flow_handler
driver status:
   tx ring  0: qid=0  cur=154 queued=3
   tx ring  1: qid=1  cur=0   queued=0
   tx ring  2: qid=2  cur=0   queued=0
   tx ring  3: qid=3  cur=0   queued=0
   tx ring  4: qid=4  cur=0   queued=0
   tx ring  5: qid=5  cur=22  queued=0
   tx ring  6: qid=6  cur=0   queued=0
   tx ring  7: qid=7  cur=0   queued=0
   tx ring  8: qid=8  cur=0   queued=0
   tx ring  9: qid=9  cur=0   queued=0
   tx ring 10: qid=10 cur=206 queued=0
   tx ring 11: qid=11 cur=0   queued=0
   tx ring 12: qid=12 cur=0   queued=0
   tx ring 13: qid=13 cur=0   queued=0
   tx ring 14: qid=14 cur=0   queued=0
   tx ring 15: qid=15 cur=0   queued=0
   tx ring 16: qid=16 cur=0   queued=0
   tx ring 17: qid=17 cur=0   queued=0
   tx ring 18: qid=18 cur=0   queued=0
   tx ring 19: qid=19 cur=0   queued=0
   tx ring 20: qid=20 cur=0   queued=0
   tx ring 21: qid=21 cur=0   queued=0
   tx ring 22: qid=22 cur=0   queued=0
   tx ring 23: qid=23 cur=0   queued=0
   tx ring 24: qid=24 cur=0   queued=0
   tx ring 25: qid=25 cur=0   queued=0
   tx ring 26: qid=26 cur=0   queued=0
   tx ring 27: qid=27 cur=0   queued=0
   tx ring 28: qid=28 cur=0   queued=0
   tx ring 29: qid=29 cur=0   queued=0
   tx ring 30: qid=30 cur=0   queued=0
   rx ring: cur=43
   802.11 state SCAN
iwm0: fatal firmware error
iwm0: failed to update MAC

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Re: Latest iwm firmware disconnects and requires a /bin/sh /etc/netstart iwm0 to reconnect

Stefan Sperling-2
On Fri, Jun 18, 2021 at 03:54:33PM -0500, John Batteen wrote:
> Possibly initiated by moving to a new access point.  Thinkpad T550, Intel AC 7265
>
> /etc/hostname.iwm0:
> nwid mynet wpakey mykey
> dhcp
>
> iwm0: hw rev 0x210, fw ver 17.3216344376.0, address 18:5e:0f:ea:ff:c4

This isn't the latest firmware yet, it's the firmware we've been using
for a long time.

> iwm0: Could not empty Tx queues (error 35)

This is a driver-side issue which was recently introduced. The driver
treats this situation as an error while it is in fact a legitimate
situation that could be handled more gracefully.

I have a fix as part of a larger patch which isn't ready yet.
If this error bothers you I can commit my fix in isolation. But it's
really just a cosmetic issue since the driver recovers from it.

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Re: Latest iwm firmware disconnects and requires a /bin/sh /etc/netstart iwm0 to reconnect

Stefan Sperling-2
On Sat, Jun 19, 2021 at 11:46:44AM +0200, Stefan Sperling wrote:

> On Fri, Jun 18, 2021 at 03:54:33PM -0500, John Batteen wrote:
> > Possibly initiated by moving to a new access point.  Thinkpad T550, Intel AC 7265
> >
> > /etc/hostname.iwm0:
> > nwid mynet wpakey mykey
> > dhcp
> >
> > iwm0: hw rev 0x210, fw ver 17.3216344376.0, address 18:5e:0f:ea:ff:c4
>
> This isn't the latest firmware yet, it's the firmware we've been using
> for a long time.
>
> > iwm0: Could not empty Tx queues (error 35)
>
> This is a driver-side issue which was recently introduced. The driver
> treats this situation as an error while it is in fact a legitimate
> situation that could be handled more gracefully.
>
> I have a fix as part of a larger patch which isn't ready yet.
> If this error bothers you I can commit my fix in isolation. But it's
> really just a cosmetic issue since the driver recovers from it.

And if you need any help with the "disconnect" issue, your report
lacks details:

Enable 'ifconfig iwm0 debug', trigger the issue again, and there
should now be a lot more context info in the dmesg buffer which
you can share.

You mentioned switching access points. Which models were involved (old
and new)?