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Re: kern/38375: LOCKDEBUG panic with 4.99.58 SMP kernels
...and another:
NetBSD/sparc64 (torbidinsu.urc.uninett.no) (console)
login: Kernel lock error: _kernel_unlock: assertion failed: nlocks <= 0
lock address : 0x00000000018d3a00 type : spin
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
current cpu : 1 last held: 0
current lwp : 0x000000001100ee20 last held: 0x000000000f9cb180
last locked : 0x00000000012ebd80 unlocked : 0x00000000013487ec
initialized : 0x00000000012b1800
curcpu holds : 0 wanted by: 000000000000000000
panic: LOCKDEBUG
Failed to pause: cpu0 cpu2 cpu3
Stopped in pid 483.1 (systat) at netbsd:cpu_Debugger+0x4: nop
db{1}> tra
lockdebug_abort1(18eb928, 18eb928, 151c730, 1686530, 1, 1) at
netbsd:lockdebug_abort1+0x7c
lockdebug_abort(18d3a00, 181b280, 151c730, 1686530, 1f4, 11004d40) at
netbsd:lockdebug_abort+0x7c
_kernel_unlock(1, 0, 0, fffffff, 18d3800, 1100ee20) at
netbsd:_kernel_unlock+0x78
cdev_read(0, 11087bf0, 0, badcafe, badcafe, badcafe) at netbsd:cdev_read+0x60
spec_read(11087a48, 1346228, 151cc00, 1100ee20, 10a58230, badcafe) at
netbsd:spec_read+0x1e0
ufsspec_read(11087a48, 10001, badcafe, 0, 0, 0) at netbsd:ufsspec_read+0x48
VOP_READ(10a58230, 11087bf0, 0, 1101f480, b8, 17) at netbsd:VOP_READ+0x6c
vn_read(11023a80, 11023a80, 11087bf0, 1101f480, 1, 23e400) at
netbsd:vn_read+0x88
dofileread(16, 11023a80, 262000, 10000, 0, 1) at netbsd:dofileread+0x60
sys_read(0, 11087dc0, 11087e00, 11084000, 9600, 798) at netbsd:sys_read+0x60
syscall_plain(11087ed0, 3, 40d39594, 209, 40d39594, 800) at
netbsd:syscall_plain+0x12c
?(0, 262000, 10000, badcafe, badcafe, badcafe) at 0x10093e4
db{1}> x/i 0x00000000012ebd80
netbsd:callout_softclock+0x2c0: call netbsd:_kernel_lock
db{1}> x/i 0x00000000013487ec
netbsd:VOP_GETPAGES+0x6c: call netbsd:_kernel_unlock
db{1}> ps/l
PID LID S FLAGS STRUCT LWP * NAME WAIT
>483 > 1 7 a0000004 1100ee20 systat
487 1 3 84 10d96700 rtorrent select
475 1 3 84 10d97c00 tcsh pause
472 1 3 84 f9ea020 screen-4.0.2 select
406 1 3 84 1100f520 tcsh pause
401 1 3 84 1100e3a0 tcsh tty
426 1 3 84 10d96e00 xterm select
429 1 3 84 10d96000 tcsh pause
334 1 3 84 1100f1a0 sshd select
437 1 3 84 10b02ac0 sshd netio
425 1 3 84 1100eaa0 xterm select
34 1 3 84 1100e720 tcsh pause
420 1 3 84 1100fc20 sshd select
404 1 3 84 1100f8a0 sshd netio
346 1 3 84 10b02740 qmgr select
377 1 3 84 f9eae20 pickup select
375 1 3 84 10b03540 getty tty
383 1 3 84 10b031c0 cron nanoslp
358 1 3 84 10d96380 inetd kqueue
350 1 3 84 10d96a80 master select
272 1 3 84 10b023c0 sshd select
235 1 3 84 10d97880 ntpd pause
165 1 3 84 10b02e40 lfs_cleanerd segment
156 1 3 84 f9e8e00 mount_mfs mfsidl
114 1 3 84 f9eb8a0 syslogd kqueue
1 1 3 84 f9ebc20 init wait
0 46 3 204 10b03c40 lfs_writer lfswriter
45 3 204 f9e8380 physiod physiod
44 3 204 f9eb1a0 vmem_rehash vmem_rehash
43 3 204 f9eb520 aiodoned aiodoned
42 3 204 f9e8700 ioflush syncer
41 3 204 f9e8000 pgdaemon pgdaemon
40 3 204 f9e9180 cryptoret crypto_wait
31 3 204 f9e9500 scsibus1 sccomp
30 3 204 f9e9880 scsibus0 sccomp
29 3 204 f9e9c00 envctrl envidle
28 3 204 f9dc040 sysmon smtaskq
27 3 80000204 f9dc3c0 xcall/3 xcall
26 1 80000204 f9dc740 softser/3
25 1 80000204 f9dcac0 softclk/3
24 1 80000204 f9dce40 softbio/3
23 1 80000204 f9dd1c0 softnet/3
22 7 a0000205 f9dd540 idle/3
21 3 80000204 f9dd8c0 xcall/2 xcall
20 1 80000204 f9ddc40 softser/2
19 1 80000204 f9d8020 softclk/2
18 1 80000204 f9d83a0 softbio/2
17 1 80000204 f9d8720 softnet/2
16 7 a0000205 f9d8aa0 idle/2
15 3 80000204 f9d8e20 xcall/1 xcall
14 1 80000204 f9d91a0 softser/1
13 1 80000204 f9d9520 softclk/1
12 1 80000204 f9d98a0 softbio/1
11 1 80000204 f9d9c20 softnet/1
10 1 80000205 f9ca000 idle/1
9 3 204 f9ca380 pmfevent pmfevent
8 2 204 f9ca700 vrele
7 3 80000204 f9caa80 xcall/0 xcall
6 1 80000204 f9cae00 softser/0
5 1 80000204 f9cb180 softclk/0
4 1 80000204 f9cb500 softbio/0
3 1 80000204 f9cb880 softnet/0
2 7 a0000205 f9cbc00 idle/0
1 3 204 181bce0 swapper schedule
db{1}> machine cpu 0
db{0}> machine prom
Type 'go' to resume
{0} ok
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