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Andriy Gapon 113ce413ba MFV r329313: 8857 zio_remove_child() panic due to already destroyed parent zio 
illumos/illumos-gate@d6e1c446d7
d6e1c446d7

https://www.illumos.org/issues/8857
  I had an OS panic on one of our servers:

  ffffff01809128c0 vpanic()
  ffffff01809128e0 mutex_panic+0x58(fffffffffb94c904, ffffff597dde7f80)
  ffffff0180912950 mutex_vector_enter+0x347(ffffff597dde7f80)
  ffffff01809129b0 zio_remove_child+0x50(ffffff597dde7c58, ffffff32bd901ac0,
  ffffff3373370908)
  ffffff0180912a40 zio_done+0x390(ffffff32bd901ac0)
  ffffff0180912a70 zio_execute+0x78(ffffff32bd901ac0)
  ffffff0180912b30 taskq_thread+0x2d0(ffffff33bae44140)
  ffffff0180912b40 thread_start+8()

  It panicked here:
  http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/fs/zfs/
  zio.c#430

  pio->io_lock is DEAD, thus a panic. Further analysis shows the "pio"
  (parent zio of "cio") has already been destroyed.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: Youzhong Yang <youzhong@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: George Wilson <george.wilson@delphix.com>

PR:		223803
Tested by:	shiva.bhanujan@quorum.com
MFC after:	2 weeks
2018-02-15 14:46:29 +00:00
..
amd64
x86 pmap: Make memory mapped via pmap_qenter() non-executable
2018-02-14 23:35:47 +00:00
arm
Make v_wire_count a per-cpu counter(9) counter. This eliminates a
2018-02-12 22:53:00 +00:00
arm64
Make v_wire_count a per-cpu counter(9) counter. This eliminates a
2018-02-12 22:53:00 +00:00
bsm
…
cam
…
cddl
MFV r329313: 8857 zio_remove_child() panic due to already destroyed parent zio
2018-02-15 14:46:29 +00:00
compat
linuxkpi: Do not leak pages on put.
2018-02-13 15:44:35 +00:00
conf
Add support for zstd-compressed user and kernel core dumps.
2018-02-13 19:28:02 +00:00
contrib
Move zstd malloc()/free()/calloc() macros to stdlib.h.
2018-02-13 19:18:00 +00:00
crypto
…
ddb
…
dev
mxge(4) should pass unhandled ioctls to ether_ioctl()
2018-02-15 03:22:04 +00:00
dts
…
fs
…
gdb
…
geom
gpart: append partition name to the underlying provider's physical path
2018-02-14 20:26:09 +00:00
gnu
bwn(4): txpid2g/txpid5g[lh] are not defined after sromrev 7; the default
2018-02-13 17:43:54 +00:00
i386
x86 pmap: Make memory mapped via pmap_qenter() non-executable
2018-02-14 23:35:47 +00:00
isa
…
kern
rwlock: diff-reduction of runlock compared to sx sunlock
2018-02-14 20:37:33 +00:00
kgssapi
kgssapi: Remove trivial deadcode
2018-02-14 00:12:03 +00:00
libkern
libkern: use nul for terminating char rather than 0
2018-02-13 19:17:48 +00:00
mips
Make v_wire_count a per-cpu counter(9) counter. This eliminates a
2018-02-12 22:53:00 +00:00
modules
Import the mthca kernel side infiniband driver from Linux 4.9 and fix
2018-02-13 17:04:34 +00:00
net
…
net80211
…
netgraph
ng_pppoe(8): add support for user-supplied Host-Uniq tag.
2018-02-14 21:17:44 +00:00
netinet
Reinitialize IP header length after checksum calculation. It is used
2018-02-10 10:13:17 +00:00
netinet6
Update the MTU in affected routes when IPv6 RA changes the MTU
2018-02-12 19:49:20 +00:00
netipsec
…
netpfil
…
netsmb
…
nfs
…
nfsclient
…
nfsserver
…
nlm
Use syscall_helper_register() to register syscalls and initialize though
2018-02-10 01:09:22 +00:00
ofed
Import the mthca kernel side infiniband driver from Linux 4.9 and fix
2018-02-13 17:04:34 +00:00
opencrypto
…
powerpc
PPC64: Get the timestap from the proper OF field
2018-02-14 02:51:28 +00:00
riscv
Make v_wire_count a per-cpu counter(9) counter. This eliminates a
2018-02-12 22:53:00 +00:00
rpc
…
security
…
sparc64
Make v_wire_count a per-cpu counter(9) counter. This eliminates a
2018-02-12 22:53:00 +00:00
sys
Add support for zstd-compressed user and kernel core dumps.
2018-02-13 19:28:02 +00:00
teken
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tests
…
tools
…
ufs
…
vm
Cleanup unused page argument for vm_reserv_break().
2018-02-14 00:34:02 +00:00
x86
xen: fix smp boot after r328157
2018-02-15 07:23:41 +00:00
xdr
…
xen
…
Makefile
…