Re: port-amd64/52696: SMAP breaks -current

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR port-amd64/52696; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-amd64/52696: SMAP breaks -current
Date: Sat, 4 Nov 2017 19:49:51 +0100

 (gdb) list *(pmap_create+0x134)
 0xffffffff8023f887 is in pmap_create (../../../../arch/x86/x86/pmap.c:2361).
 2356     try_again:
 2357            pmap->pm_pdir = pool_cache_get(&pmap_pdp_cache, PR_WAITOK);
 2358    
 2359            mutex_enter(&pmaps_lock);
 2360    
 2361            if (pmap->pm_pdir[PDIR_SLOT_KERN + nkptp[PTP_LEVELS - 1] - 1] == 0) {
 2362                    mutex_exit(&pmaps_lock);
 
 cpuctl identify:
 
 cpu0: highest basic info 00000006
 cpu0: highest extended info 8000001b
 cpu0: "AMD Phenom(tm) II X6 1075T Processor"
 cpu0: AMD Family 10h (686-class), 3010.15 MHz
 cpu0: family 0x10 model 0xa stepping 0 (id 0x100fa0)
 cpu0: features 0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE>
 cpu0: features 0x178bfbff<MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT>
 cpu0: features1 0x802009<SSE3,MONITOR,CX16,POPCNT>
 cpu0: features2 0xefd3fbff<SYSCALL/SYSRET,NOX,MMXX,FFXSR,P1GB,RDTSCP,LONG>
 cpu0: features2 0xefd3fbff<3DNOW2,3DNOW>
 cpu0: features3 0x37ff<LAHF,CMPLEGACY,SVM,EAPIC,ALTMOVCR0,LZCNT,SSE4A>
 cpu0: features3 0x37ff<MISALIGNSSE,3DNOWPREFETCH,OSVW,IBS,SKINIT,WDT>
 cpu0: I-cache 64KB 64B/line 2-way, D-cache 64KB 64B/line 2-way
 cpu0: L2 cache 512KB 64B/line 16-way
 cpu0: L3 cache 6MB 64B/line 48-way
 cpu0: ITLB 32 4KB entries fully associative, 16 2MB entries fully associative
 cpu0: DTLB 48 4KB entries fully associative, 48 2MB entries fully associative
 cpu0: L2 ITLB 512 4KB entries 4-way
 cpu0: L2 DTLB 512 4KB entries 4-way, 128 2MB entries 2-way
 cpu0: L1 1GB page DTLB 48 1GB entries fully associative
 cpu0: L2 1GB page DTLB 16 1GB entries 8-way
 cpu0: Initial APIC ID 0
 cpu0: AMD Power Management features: 0x3f9<TS,TTP,HTC,STC,100,HWP,TSC,CPB>
 cpu0: SVM Rev. 1
 cpu0: SVM NASID 64
 cpu0: SVM features 0x40f<NP,LbrVirt,SVML,NRIPS,PauseFilter>
 cpu0: UCode version: 0x10000bf
 
 
 
 Will try to reproduce and get a crashdump next time...
 
 Martin