Date: Mon, 18 Nov 2019 16:12:13 -0800 From: bob prohaska <fbsd@www.zefox.net> To: freebsd-arm@freebsd.org Subject: Another "invalid ASID" panic on an rpi3 running r354796 Message-ID: <20191119001213.GA93097@www.zefox.net>
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The "invalid ASID" patch seemed to apply without error and caused no
visible problems on a Pi3 running r354796. An attempt to crash the
machine by running stress2's misc/all.sh test for perhaps an hour failed.
However, after stopping stress2 I started an old build of www/chromium,
and the machine promptly panic'd:
panic: invalid ASID
cpuid = 0
time = 1574121393
KDB: stack backtrace:
db_trace_self() at db_trace_self_wrapper+0x28
pc = 0xffff00000072947c lr = 0xffff0000001064f0
sp = 0xffff000051927310 fp = 0xffff000051927520
db_trace_self_wrapper() at vpanic+0x18c
pc = 0xffff0000001064f0 lr = 0xffff000000400b5c
sp = 0xffff000051927530 fp = 0xffff0000519275e0
vpanic() at panic+0x44
pc = 0xffff000000400b5c lr = 0xffff00000040090c
sp = 0xffff0000519275f0 fp = 0xffff000051927670
panic() at pmap_remove_write+0x564
pc = 0xffff00000040090c lr = 0xffff000000740e9c
sp = 0xffff000051927680 fp = 0xffff0000519276e0
pmap_remove_write() at vfs_busy_pages+0xe8
pc = 0xffff000000740e9c lr = 0xffff0000004accec
sp = 0xffff0000519276f0 fp = 0xffff000051927730
vfs_busy_pages() at bufwrite+0x10c
pc = 0xffff0000004accec lr = 0xffff0000004aa628
sp = 0xffff000051927740 fp = 0xffff000051927770
bufwrite() at cluster_wbuild+0x624
pc = 0xffff0000004aa628 lr = 0xffff0000004bb360
sp = 0xffff000051927780 fp = 0xffff000051927820
cluster_wbuild() at flushbufqueues+0x4c0
pc = 0xffff0000004bb360 lr = 0xffff0000004b2610
sp = 0xffff000051927830 fp = 0xffff0000519278e0
flushbufqueues() at buf_daemon+0x228
pc = 0xffff0000004b2610 lr = 0xffff0000004b1d20
sp = 0xffff0000519278f0 fp = 0xffff000051927940
buf_daemon() at fork_exit+0x7c
pc = 0xffff0000004b1d20 lr = 0xffff0000003c0eb0
sp = 0xffff000051927950 fp = 0xffff000051927980
fork_exit() at fork_trampoline+0x10
pc = 0xffff0000003c0eb0 lr = 0xffff0000007458bc
sp = 0xffff000051927990 fp = 0x0000000000000000
KDB: enter: panic
[ thread pid 23 tid 100068 ]
Stopped at 0
db> bt
Tracing pid 23 tid 100068 td 0xfffffd0000d7e560
db_trace_self() at db_stack_trace+0xf8
pc = 0xffff00000072947c lr = 0xffff000000103934
sp = 0xffff000051926ee0 fp = 0xffff000051926f10
db_stack_trace() at db_command+0x228
pc = 0xffff000000103934 lr = 0xffff0000001035ac
sp = 0xffff000051926f20 fp = 0xffff000051927000
db_command() at db_command_loop+0x58
pc = 0xffff0000001035ac lr = 0xffff000000103354
sp = 0xffff000051927010 fp = 0xffff000051927030
db_command_loop() at db_trap+0xf4
pc = 0xffff000000103354 lr = 0xffff000000106658
sp = 0xffff000051927040 fp = 0xffff000051927260
db_trap() at kdb_trap+0x1d8
pc = 0xffff000000106658 lr = 0xffff0000004490f4
sp = 0xffff000051927270 fp = 0xffff000051927320
kdb_trap() at do_el1h_sync+0xf4
pc = 0xffff0000004490f4 lr = 0xffff000000745b30
sp = 0xffff000051927330 fp = 0xffff000051927360
do_el1h_sync() at handle_el1h_sync+0x78
pc = 0xffff000000745b30 lr = 0xffff00000072b878
sp = 0xffff000051927370 fp = 0xffff000051927480
handle_el1h_sync() at kdb_enter+0x34
pc = 0xffff00000072b878 lr = 0xffff000000448740
sp = 0xffff000051927490 fp = 0xffff000051927520
kdb_enter() at vpanic+0x1a8
pc = 0xffff000000448740 lr = 0xffff000000400b78
sp = 0xffff000051927530 fp = 0xffff0000519275e0
vpanic() at panic+0x44
pc = 0xffff000000400b78 lr = 0xffff00000040090c
sp = 0xffff0000519275f0 fp = 0xffff000051927670
panic() at pmap_remove_write+0x564
pc = 0xffff00000040090c lr = 0xffff000000740e9c
sp = 0xffff000051927680 fp = 0xffff0000519276e0
pmap_remove_write() at vfs_busy_pages+0xe8
pc = 0xffff000000740e9c lr = 0xffff0000004accec
sp = 0xffff0000519276f0 fp = 0xffff000051927730
vfs_busy_pages() at bufwrite+0x10c
pc = 0xffff0000004accec lr = 0xffff0000004aa628
sp = 0xffff000051927740 fp = 0xffff000051927770
bufwrite() at cluster_wbuild+0x624
pc = 0xffff0000004aa628 lr = 0xffff0000004bb360
sp = 0xffff000051927780 fp = 0xffff000051927820
cluster_wbuild() at flushbufqueues+0x4c0
pc = 0xffff0000004bb360 lr = 0xffff0000004b2610
sp = 0xffff000051927830 fp = 0xffff0000519278e0
flushbufqueues() at buf_daemon+0x228
pc = 0xffff0000004b2610 lr = 0xffff0000004b1d20
sp = 0xffff0000519278f0 fp = 0xffff000051927940
buf_daemon() at fork_exit+0x7c
pc = 0xffff0000004b1d20 lr = 0xffff0000003c0eb0
sp = 0xffff000051927950 fp = 0xffff000051927980
fork_exit() at fork_trampoline+0x10
pc = 0xffff0000003c0eb0 lr = 0xffff0000007458bc
sp = 0xffff000051927990 fp = 0x0000000000000000
db>
Please let me know if there's anything I can do to gather more
useful information.
Thanks for reading,
bob prohaska
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