kern/60636: rump on sparc64 totally broken still with vm.c rev 1.201

["martin%NetBSD.org@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60636
>Category:       kern
>Synopsis:       rump on sparc64 totally broken still with vm.c rev 1.201
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 24 18:45:00 +0000 2026
>Originator:     Martin Husemann
>Release:        NetBSD 11.99.7
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD thirdstage.duskware.de 11.99.7 NetBSD 11.99.7 (MODULAR) #911: Mon Aug 24 12:13:03 CEST 2026 martin%thirdstage.duskware.de@localhost:/home/martin/current/src/sys/arch/sparc64/compile/MODULAR sparc64
Architecture: sparc64
Machine: sparc64
>Description:

After the recent uvm changes, rump is broken on sparc64.
This is build locally, cvs.netbsd.org source tree date: 2026-08-24 08:27 UTC
and explicitly checked: all /usr/lib/librump* show vm.c as 
$NetBSD: vm.c,v 1.201 2026/08/23 23:56:54 riastradh Exp $

Here is an example from atf test output:

tc-end: 1787589424.304451, cgd_3des_cbc_192_encblkno1, failed, Test program received signal 6 (core dumped)
tc-start: 1787589424.306559, cgd_3des_cbc_192_encblkno8
tc-so:[   1.0000000] mutex error: mutex_enter,165: spin lock held
tc-so:
tc-so:[   1.0000000] lock address : 0x000000004136f410
tc-so:[   1.0000000] type         : spin
tc-so:[   1.0000000] initialized  : 0x00000000411a2184
tc-so:[   1.0000000] shared holds :                  0 exclusive:                  1
tc-so:[   1.0000000] shares wanted:                  0 exclusive:                  0
tc-so:[   1.0000000] relevant cpu :                  0 last held:                  0
tc-so:[   1.0000000] relevant lwp : 0x0000000041359f28 last held: 0x0000000041359f28
tc-so:[   1.0000000] last locked* : 0x00000000411a2a2c
tc-so:[   1.0000000] unlocked     : 000000000000000000
tc-so:
tc-so:[   1.0000000] panic: LOCKDEBUG: mutex error: mutex_enter,165: spin lock held
tc-so:[   1.0000000] rump kernel halting...
tc-so:halted
tc-se:Test program crashed; attempting to get stack trace
tc-se:[New process 22944]
tc-se:Core was generated by `t_cgd_3des'.
tc-se:Program terminated with signal SIGABRT, Aborted.
tc-se:#0  abort () at /home/martin/current/src/lib/libc/stdlib/abort.c:80
tc-se:80                (void)signal(SIGABRT, SIG_DFL);
tc-se:#0  abort () at /home/martin/current/src/lib/libc/stdlib/abort.c:80
tc-se:#1  0x000000004140aa7c in rumpuser_exit (rv=-1) at /home/martin/current/src/lib/librumpuser/rumpuser.c:236
tc-se:#2  0x000000004120796c in cpu_reboot (howto=4, bootstr=0x0) at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/emul.c:447
tc-se:#3  0x00000000411d1c5c in kern_reboot (howto=4, bootstr=0x0) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/kern_reboot.c:91
tc-se:#4  0x000000004119f938 in vpanic (fmt=0x4120d8c0 "LOCKDEBUG: %s error: %s,%zu: %s", ap=0xffffffffffffc158) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_prf.c:288
tc-se:#5  0x000000004119fa28 in panic (fmt=0x4120d8c0 "LOCKDEBUG: %s error: %s,%zu: %s") at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_prf.c:209
tc-se:#6  0x000000004117abb4 in lockdebug_abort1 (s=0, func=0x412233b8 <__func__.12> "mutex_enter", line=165, ld=0x4135cb58 <rumpns_ld_prime+2400>, msg=0x4120da90 "spin lock held", dopanic=true) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_lockdebug.c:818
tc-se:#7  lockdebug_abort1 (func=0x412233b8 <__func__.12> "mutex_enter", line=165, ld=0x4135cb58 <rumpns_ld_prime+2400>, msg=0x4120da90 "spin lock held", dopanic=true, s=0) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_lockdebug.c:796
tc-se:#8  0x00000000411fd77c in mutex_enter (mtx=0x41373a90 <pdaemonmtx>) at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/locks.c:165
tc-se:#9  0x0000000041200100 in uvm_wait_prepare () at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/vm.c:1116
tc-se:#10 uvm_wait_prepare () at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/vm.c:1109
tc-se:#11 0x0000000041200cd0 in rump_hypermalloc (howmuch=8192, alignment=8192, waitok=false, wmsg=0x4121e508 "kmalloc") at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/vm.c:1359
tc-se:#12 0x0000000041200e1c in uvm_km_kmem_alloc (vm=<optimized out>, size=8192, flags=4098, addr=0xffffffffffffc558) at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/vm.c:930
tc-se:#13 0x0000000041195c04 in vmem_import (vm=0x4136b558 <kmem_meta_arena_store>, size=<optimized out>, flags=4098) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_vmem.c:836
tc-se:#14 vmem_xalloc (vm=0x4136b558 <kmem_meta_arena_store>, size0=<optimized out>, align=8192, phase=0, nocross=0, minaddr=0, maxaddr=<optimized out>, flags=<optimized out>, addrp=<optimized out>) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_vmem.c:1312
tc-se:#15 0x00000000411967a4 in vmem_alloc (vm=0x4136b558 <kmem_meta_arena_store>, size=8192, flags=4098, addrp=0xffffffffffffc6e8) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_vmem.c:1151
tc-se:#16 0x00000000411a076c in pool_page_alloc_meta (pp=<optimized out>, flags=<optimized out>) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:3011
tc-se:#17 0x00000000411a367c in pool_allocator_alloc (pp=0x4136f360 <pcg_normal_pool>, flags=2) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:2962
tc-se:#18 pool_grow (pp=0x4136f360 <pcg_normal_pool>, flags=2) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:1419
tc-se:#19 0x00000000411a2a7c in pool_get (pp=0x4136f360 <pcg_normal_pool>, flags=2) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:1189
tc-se:#20 0x00000000411a5f94 in pool_cache_put_slow (pc=0x40246c00, cc=0x40246f40, object=0x40290040, s=0) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:2797
tc-se:#21 0x00000000411a6e88 in pool_cache_put_paddr (pc=0x40246c00, object=0x40290040, pa=18446744073709551615) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/subr_pool.c:2895
tc-se:#22 0x00000000411cbd1c in sysctl_realloc (p=0x41354020 <rumpns_sysctl_root>) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/kern_sysctl.c:2748
tc-se:#23 sysctl_create (name=<optimized out>, namelen=<optimized out>, oldp=0xffffffffffffcce0, oldlenp=0xffffffffffffcc18, newp=<optimized out>, newlen=<optimized out>, oname=0xffffffffffffcc20, l=0x0, rnode=0x41354020 <rumpns_sysctl_root>) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/kern_sysctl.c:1150
tc-se:#24 0x00000000411cd3ac in sysctl_createv (log=0x0, cflags=<optimized out>, rnode=<optimized out>, cnode=0x0, flags=16777729, type=<optimized out>, namep=<optimized out>, descr=<optimized out>, func=<optimized out>, qv=<optimized out>, newp=<optimized out>, newlen=<optimized out>) at /home/martin/current/src/lib/librump/../../sys/rump/../kern/kern_sysctl.c:2096
tc-se:#25 0x00000000411f85e0 in sysctl_basenode_init () at /home/martin/current/src/lib/librump/../../sys/rump/../kern/init_sysctl_base.c:104
tc-se:#26 0x00000000411cc4b0 in sysctl_init () at /home/martin/current/src/lib/librump/../../sys/rump/../kern/kern_sysctl.c:243
tc-se:#27 0x0000000041209588 in rump_init_callback (cpuinit_callback=0x0) at /home/martin/current/src/lib/librump/../../sys/rump/librump/rumpkern/rump.c:305
tc-se:#28 0x000000000010220c in atfu_cgd_3des_cbc_192_encblkno8_body (tc=0x205e18 <atfu_cgd_3des_cbc_192_encblkno8_tc>) at /home/martin/current/src/tests/dev/cgd/t_cgd_3des.c:873
tc-se:#29 0x0000000041a0965c in atf_tc_run (tc=0x205e18 <atfu_cgd_3des_cbc_192_encblkno8_tc>, resfile=0x40216060 "/tmp/atf-run.Zlyt0l/tcr") at /home/martin/current/src/external/bsd/atf/dist/atf-c/tc.c:1024
tc-se:#30 0x0000000041a07c74 in run_tc (tp=0xffffffffffffd3a8, p=0xffffffffffffd3c0, exitcode=<synthetic pointer>) at /home/martin/current/src/external/bsd/atf/dist/atf-c/detail/tp_main.c:510


>How-To-Repeat:

Just run ATF tests.

>Fix:
n/a