>Synopsis: ure RTL8153 panics on 6.7 - was stable on 6.6
>Category:
>Environment:
System : OpenBSD 6.7
Details : OpenBSD 6.7 (GENERIC.MP) #1: Sat May 16 16:33:02 MDT 2020
r...@syspatch-67-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
** PRELIMINARY BUG REPORT - INCOMPLETE INFO **
USB ure with RTL8153 on 6.7 panics. Same hardware stable on 6.6.
ure0 at uhub0 port 14 configuration 1 interface 0 "Realtek USB 10/100/1000 LAN"
rev 3.00/30.00 addr 5
ure0: RTL8153 (0x5c30), address a0:ce:c8:cd:ba:d1
rgephy0 at ure0 phy 0: RTL8251 PHY, rev. 0
Under load (estimated 50MB/s for approximate 5 minutes), kernel panics:
panic: assertwaitok: non-zero mutex count: 1
Stopped at db_enter+0xl0: popq %rbp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x10
panic(81c8al98) at panic+0x128
assertwaitok() at assertwaitok+0xc7
mi_switch at mi_switch+0x40
sleep_finish(800022e816b8,1) at sleep_finish+0x84
sleep_finish_all(800022e816b8,1) at sleep_finish_all+0x21
tsleepCfd84465a24b0,10,81c9c412,0) at tsleep+0xd6
usbd_transfer(fd84465a24b0) at usbd_transfer+0x204
usbd_do_request_flagsC8052e600,800022e81810,800022e8180c,0,0,1388)
at usbd_do_request_fLags+0x139
ure_reset(80538000) at ure_reset+0x5e
ure_stop(80538000) at ure_stop+0x21
ure_encap(80538000, fd809e390f00) at ure_encap+0xf2
ure_start(805380d0) at ure_start+0x8b
if_qstart_compat(80538348) at if_qstart_conpat+0x2e
end trace frame: 0x800022e819b0, count: 0
https://www.openbsd.org/ddb.htnl describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
Above panic OCR’d from a picture and may have errors. I hope to provide more
info / trace later.
Aside:
Same panic occurred with RTL8156 - first 6.7 panic. After that I reverted to
the RTL8153 above in case panic was limited to the newly-supported hardware.
ure0 at uhub0 port 14 configuration 1 interface 0 "Realtek USB 10/100/1G/2.5G
LAN" rev 3.20/30.00 addr 5
ure0: RTL8156 (0x7030), address 00:e0:4c:ab:64:5a
>How-To-Repeat:
Standard 6.7 amd64 install with 001_wscons syspatch and either RTL8153
or RTL8156.
Run under network load for a few minutes.
>Fix:
I removed the ure usb and reverted to an old axe device.
dmesg:
OpenBSD 6.7 (GENERIC.MP) #1: Sat May 16 16:33:02 MDT 2020
r...@syspatch-67-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 17076674560 (16285MB)
avail mem = 16546508800 (15779MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xb4eda000 (53 entries)
bios0: vendor Intel Corporation version "RYBDWi35.86A.0383.2019.1030.1528" date
10/30/2019
bios0: Intel Corporation NUC5i7RYB
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG HPET SSDT UEFI LPIT SSDT ASF! SSDT
SSDT SSDT DMAR BGRT
acpi0: wakeup devices PEG0(S4) PEGP(S4) PEG1(S4) PEGP(S4) PEG2(S4) PEGP(S4)
RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) RP03(S4) PXSX(S4) RP04(S4) PXSX(S4)
RP05(S4) PXSX(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz, 3392.63 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,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,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,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 2 (application processor)
cpu1: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz, 3392.17 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,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,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD,SENSOR,ARAT,XSAVEOPT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz, 3392.16 MHz, 06-3d-04
cpu2:
