Date: Wed, 19 Aug 2015 03:21:04 +0300 From: Dmitry Marakasov <amdmi3@amdmi3.ru> To: freebsd-arm@FreeBSD.org Cc: ian@FreeBSD.org, andrew@FreeBSD.org, onwahe@gmail.com, meloun@miracle.cz Subject: Instability likely related to new pmap on Cubieboard A10 Message-ID: <20150819002103.GC79354@hades.panopticon>
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Hi!
I've just tried latest HEAD on cubieboard A10, and discovered that
it's completely unstable. Kernel boots without problems, however
right after init is started many processes crash with sigsegv and
other errors, and it ends with either hang or a panic. Examples
below. With kernel built with `nooptions ARM_NEW_PMAP' these
problems go away. Feel free to ask for any additional info.
---
Trying to mount root from ufs:/dev/mmcsd0s2 []...
warning: no time-of-day clock registered, system time will not be set accurately
pid 20 (stty), uid 0: exited on signal 11
Segmentation fault
pid 21 (sysctl), uid 0: exited on signal 11
pid 22 (ps), uid 0: exited on signal 12
Bad system call
pid 23 (sysctl), uid 0: exited on signal 12
Bad system call
[: -eq: unexpected operator
pid 24 (rcorder), uid 0: exited on signal 11
pid 25 (rcorder), uid 0: exited on signal 11
pid 26 (date), uid 0: exited on signal 12
Bad system call
pid 27 (getty), uid 0: exited on signal 11
<hang>
---
---
Trying to mount root from ufs:/dev/mmcsd0s2 []...
warning: no time-of-day clock registered, system time will not be set
accurately
pid 30 (sh), uid 0: exited on signal 11
Segmentation fault
Setting hostuuid: 024ae582-45aa-11e5-88c7-832954db904b.
Setting hostid: 0xd41d8cd9.
No suitable dump device was found.
Starting file system checks:
/dev/mmcsd0s2: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/mmcsd0s2: clean, 7268431 free (343 frags, 908511 blocks, 0.0%
fragmentation)
Mounting local file systems:.
random: unblocking device.
Setting hostname: cubie.panopticon.
Setting up harvesting:pid 119 (sysctl), uid 0: exited on signal 11
Segmentation fault
Feeding entropy:eval: cannot create /entropy: Read-only file system
pid 127 (sh), uid 0: exited on signal 11
Segmentation fault
ELF ldconfig path: /lib /usr/lib /usr/lib/compat
Starting devd.
emac0: link state changed to UP
/etc/rc.d/netif: ERROR: USAGE: gpid 148 (sh), uid 0: exited on signal 11
et_if_var name var [default]
pid 146 (sh), uid 0: exited on signal 11
Segmentation fault
pid 151 (sh), uid 0: exited on signal 11
pid 159 (sh), uid 0: exited on signal 11
Segmentation fault
pid 162 (sh), uid 0: exited on signal 11
pid 164 (sh), uid 0: exited on signal 11
/usr/bin/id: Shared object has no run-time symbol table
pid 182 (sysctl), uid 0: exited on signal 11
Segmentation fault
/sbin/sysctl: Shared object has no run-time symbol table
pid 186 (sysctl), uid 0: exited on signal 11
Segmentation fault
Waiting 30s for the default route interface:
..........^Cpmap_remove_pages: pmap 0xc0833974 va 0x20282000 pte1 0
panic: bad pte1
KDB: enter: panic
[ thread pid 238 tid 100056 ]
Stopped at kdb_enter+0x58: ldrb r15, [r15, r15, ror r15]!
db> bt
Tracing pid 238 tid 100056 td 0xc3c98350
db_trace_self() at db_trace_self
pc = 0xc0648a9c lr = 0xc02423e0 (db_hex2dec+0x494)
sp = 0xef6cb760 fp = 0xef6cb778
r10 = 0xc079f118
db_hex2dec() at db_hex2dec+0x494
pc = 0xc02423e0 lr = 0xc0241e78 (db_command_loop+0x40c)
sp = 0xef6cb780 fp = 0xef6cb820
r4 = 0x00000000 r5 = 0x00000000
r6 = 0x00000000 r10 = 0xc079f118
db_command_loop() at db_command_loop+0x40c
pc = 0xc0241e78 lr = 0xc0241ae0 (db_command_loop+0x74)
sp = 0xef6cb828 fp = 0xef6cb838
r4 = 0xc0690ed5 r5 = 0xc06a7553
r6 = 0xc079f104 r7 = 0xc0747bd4
r8 = 0xc0794950 r9 = 0xc0794954
r10 = 0xef6cba00
db_command_loop() at db_command_loop+0x74
pc = 0xc0241ae0 lr = 0xc0244634 (db_fetch_ksymtab+0x2d0)
sp = 0xef6cb840 fp = 0xef6cb958
r4 = 0x00000000 r5 = 0xc079f110
r6 = 0xc0794978 r10 = 0xef6cba00
db_fetch_ksymtab() at db_fetch_ksymtab+0x2d0
pc = 0xc0244634 lr = 0xc03cfe9c (kdb_trap+0xd4)
sp = 0xef6cb960 fp = 0xef6cb980
r4 = 0x00000000 r5 = 0x00000001
r6 = 0xc0794978 r7 = 0xc0747bd4
kdb_trap() at kdb_trap+0xd4
pc = 0xc03cfe9c lr = 0xc065fbdc (undefinedinstruction+0x350)
sp = 0xef6cb988 fp = 0xef6cb9f8
r4 = 0x00000000 r5 = 0x00000000
r6 = 0xc065f7dc r7 = 0xe7ffffff
r8 = 0xc3c98350 r9 = 0xc03cf768
r10 = 0xef6cba00
undefinedinstruction() at undefinedinstruction+0x350
pc = 0xc065fbdc lr = 0xc064a124 (exception_exit)
sp = 0xef6cba00 fp = 0xef6cba98
r4 = 0xc06a75a8 r5 = 0xef6cbadc
r6 = 0xc06c933a r7 = 0xc0786ea0
r8 = 0xc3c98350 r9 = 0xc07a07c8
r10 = 0xc0786e30
exception_exit() at exception_exit
pc = 0xc064a124 lr = 0xc03cf758 (kdb_enter+0x48)
sp = 0xef6cba90 fp = 0xef6cba98
r0 = 0xc0794964 r1 = 0x00000000
r2 = 0xef6cb9c4 r3 = 0xc06a99f9
r4 = 0xc06a75a8 r5 = 0xef6cbadc
r6 = 0xc06c933a r7 = 0xc0786ea0
r8 = 0xc3c98350 r9 = 0xc07a07c8
r10 = 0xc0786e30 r12 = 0x00000000
kdb_enter() at kdb_enter+0x5c
pc = 0xc03cf76c lr = 0xc0393b20 (vpanic+0xd0)
sp = 0xef6cbaa0 fp = 0xef6cbac0
r4 = 0x00000100 r10 = 0xc0786e30
vpanic() at vpanic+0xd0
pc = 0xc0393b20 lr = 0xc0393a50 (vpanic)
sp = 0xef6cbac8 fp = 0xef6cbad0
r4 = 0x00003ff8 r5 = 0xc1f14798
r6 = 0x00000000 r7 = 0xc1f147d8
r8 = 0x00000002 r9 = 0x00000001
r10 = 0xc0833974
vpanic() at vpanic
pc = 0xc0393a50 lr = 0xc0654fbc (pmap_remove_pages+0x76c)
sp = 0xef6cbad8 fp = 0xef6cbb38
r4 = 0x00000002 r5 = 0x00000001
r6 = 0xc0833974 r7 = 0xef6cbad0
r8 = 0xc0393a50 r9 = 0x438c3800
r10 = 0xef6cbadc
pmap_remove_pages() at pmap_remove_pages+0x76c
pc = 0xc0654fbc lr = 0xc061d9d0 (vmspace_exit+0xc8)
sp = 0xef6cbb40 fp = 0xef6cbb60
r4 = 0xc0833970 r5 = 0x00000001
r6 = 0xc07a03b8 r7 = 0xc3cde380
r8 = 0xc0833974 r9 = 0xc08338b8
r10 = 0xc3c98350
vmspace_exit() at vmspace_exit+0xc8
pc = 0xc061d9d0 lr = 0xc03579b4 (exit1+0x7a0)
sp = 0xef6cbb68 fp = 0xef6cbbb8
r4 = 0xc3cde43c r5 = 0xc3cde43c
r6 = 0x00000001 r7 = 0xc3cde43c
r8 = 0xc3cde380 r9 = 0x00000000
r10 = 0xc3c98350
exit1() at exit1+0x7a0
pc = 0xc03579b4 lr = 0xc03977f0 (sigexit+0xb38)
sp = 0xef6cbbc0 fp = 0xef6cbda0
r4 = 0xc3c98350 r5 = 0xc3c98350
r6 = 0xef6cbdbc r7 = 0x00000001
r8 = 0xc3caf000 r9 = 0xc3cde380
r10 = 0x00000002
sigexit() at sigexit+0xb38
pc = 0xc03977f0 lr = 0xc039823c (osigsuspend)
sp = 0xef6cbda8 fp = 0xef6cbe28
r4 = 0x00000004 r5 = 0xc3c98350
r6 = 0xef6cbdbc r7 = 0x00000001
r8 = 0xc3caf000 r9 = 0x00000000
r10 = 0x00000002
osigsuspend() at osigsuspend
pc = 0xc039823c lr = 0xc03e0620 (ast+0x428)
sp = 0xef6cbe30 fp = 0xef6cbe50
ast() at ast+0x428
pc = 0xc03e0620 lr = 0xc064a0f4 (swi_exit+0x40)
sp = 0xef6cbe58 fp = 0xbfbffe30
r4 = 0x40000013 r5 = 0xc3c98350
r6 = 0x00008a34 r7 = 0x000000f0
r8 = 0xbfbffe78 r9 = 0x00000000
r10 = 0xbfbffe6c
swi_exit() at swi_exit+0x40
pc = 0xc064a0f4 lr = 0xc064a0f4 (swi_exit+0x40)
sp = 0xef6cbe58 fp = 0xbfbffe30
---
--
Dmitry Marakasov . 55B5 0596 FF1E 8D84 5F56 9510 D35A 80DD F9D2 F77D
amdmi3@amdmi3.ru ..: jabber: amdmi3@jabber.ru http://amdmi3.ru
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