FreeBSD Bugzilla – Attachment 193116 Details for
Bug 227213
FreeBSD 10.4 kernel deadlocks on sysctlmemlock
Home
|
New
|
Browse
|
Search
|
[?]
|
Reports
|
Help
|
New Account
|
Log In
Remember
[x]
|
Forgot Password
Login:
[x]
Giant lock(?)
Giant.txt (text/plain), 1.59 KB, created by
Eugene Grosbein
on 2018-05-06 21:01:14 UTC
(
hide
)
Description:
Giant lock(?)
Filename:
MIME Type:
Creator:
Eugene Grosbein
Created:
2018-05-06 21:01:14 UTC
Size:
1.59 KB
patch
obsolete
>(kgdb) thread 257 >[Switching to thread 257 (Thread 100247)]#0 sched_switch (td=0xfffff80079fd3000, > newtd=<value optimized out>, flags=<value optimized out>) > at /usr/src/sys/kern/sched_ule.c:1956 >1956 cpuid = PCPU_GET(cpuid); >Current language: auto; currently minimal >(kgdb) frame 15 >#15 0xffffffff80980b02 in sysctl_root (arg1=<value optimized out>, arg2=<value optimized out>) > at /usr/src/sys/kern/kern_sysctl.c:1532 >1532 error = oid->oid_handler(oid, arg1, arg2, req); >(kgdb) l >1527 if ((oid->oid_kind & CTLFLAG_VNET) && arg1 != NULL) >1528 arg1 = (void *)(curvnet->vnet_data_base + (uintptr_t)arg1); >1529 #endif >1530 if (!(oid->oid_kind & CTLFLAG_MPSAFE)) >1531 mtx_lock(&Giant); >1532 error = oid->oid_handler(oid, arg1, arg2, req); >1533 if (!(oid->oid_kind & CTLFLAG_MPSAFE)) >1534 mtx_unlock(&Giant); >1535 >1536 KFAIL_POINT_ERROR(_debug_fail_point, sysctl_running, error); >(kgdb) p *oid >$1 = {oid_parent = 0xfffff8000a0d7b20, oid_link = {sle_next = 0xfffff8000a0db880}, > oid_number = 2147480894, oid_kind = 2181038083, oid_arg1 = 0xfffff8000870cc00, oid_arg2 = 3, > oid_name = 0xfffff8000a0d7ad0 "%pnpinfo", > oid_handler = 0xffffffff809aafc0 <device_sysctl_handler>, oid_fmt = 0xffffffff8100916e "A", > oid_refcnt = 1, oid_running = 1, oid_descr = 0xfffff8000a0d67c0 "device identification"} >(kgdb) p arg1 >$2 = <value optimized out> >(kgdb) p arg2 >$3 = <value optimized out> >(kgdb) p req >Cannot access memory at address 0x0 >(kgdb) p !(oid->oid_kind & 0x00040000) >$6 = 1
You cannot view the attachment while viewing its details because your browser does not support IFRAMEs.
View the attachment on a separate page
.
View Attachment As Raw
Actions:
View
Attachments on
bug 227213
:
192121
|
192122
|
192172
|
192199
|
193023
| 193116