Kinglong Mee df807fffaa NFSv4.x/callback: Create the callback service through svc_create_pooled ... As the comments for svc_set_num_threads() said, " Destroying threads relies on the service threads filling in rqstp->rq_task, which only the nfs ones do. Assumes the serv has been created using svc_create_pooled()." If creating service through svc_create(), the svc_pool_map_put() will be called in svc_destroy(), but the pool map isn't used. So that, the reference of pool map will be drop, the next using of pool map will get a zero npools. [ 137.992130] divide error: 0000 [#1] SMP [ 137.992148] Modules linked in: nfsd(E) nfsv4 nfs fscache fuse tun bridge stp llc ip_set nfnetlink vmw_vsock_vmci_transport vsock snd_seq_midi snd_seq_midi_event vmw_balloon coretemp crct10dif_pclmul crc32_pclmul ppdev ghash_clmulni_intel intel_rapl_perf joydev snd_ens1371 gameport snd_ac97_codec ac97_bus snd_seq snd_pcm snd_rawmidi snd_timer snd_seq_device snd soundcore parport_pc parport nfit acpi_cpufreq tpm_tis tpm_tis_core tpm vmw_vmci i2c_piix4 shpchp auth_rpcgss nfs_acl lockd(E) grace sunrpc(E) xfs libcrc32c vmwgfx drm_kms_helper ttm crc32c_intel drm e1000 mptspi scsi_transport_spi serio_raw mptscsih mptbase ata_generic pata_acpi [last unloaded: nfsd] [ 137.992336] CPU: 0 PID: 4514 Comm: rpc.nfsd Tainted: G E 4.11.0-rc8+ #536 [ 137.992777] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/02/2015 [ 137.993757] task: ffff955984101d00 task.stack: ffff9873c2604000 [ 137.994231] RIP: 0010:svc_pool_for_cpu+0x2b/0x80 [sunrpc] [ 137.994768] RSP: 0018:ffff9873c2607c18 EFLAGS: 00010246 [ 137.995227] RAX: 0000000000000000 RBX: ffff95598376f000 RCX: 0000000000000002 [ 137.995673] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9559944aec00 [ 137.996156] RBP: ffff9873c2607c18 R08: ffff9559944aec28 R09: 0000000000000000 [ 137.996609] R10: 0000000001080002 R11: 0000000000000000 R12: ffff95598376f010 [ 137.997063] R13: ffff95598376f018 R14: ffff9559944aec28 R15: ffff9559944aec00 [ 137.997584] FS: 00007f755529eb40(0000) GS:ffff9559bb600000(0000) knlGS:0000000000000000 [ 137.998048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 137.998548] CR2: 000055f3aecd9660 CR3: 0000000084290000 CR4: 00000000001406f0 [ 137.999052] Call Trace: [ 137.999517] svc_xprt_do_enqueue+0xef/0x260 [sunrpc] [ 138.000028] svc_xprt_received+0x47/0x90 [sunrpc] [ 138.000487] svc_add_new_perm_xprt+0x76/0x90 [sunrpc] [ 138.000981] svc_addsock+0x14b/0x200 [sunrpc] [ 138.001424] ? recalc_sigpending+0x1b/0x50 [ 138.001860] ? __getnstimeofday64+0x41/0xd0 [ 138.002346] ? do_gettimeofday+0x29/0x90 [ 138.002779] write_ports+0x255/0x2c0 [nfsd] [ 138.003202] ? _copy_from_user+0x4e/0x80 [ 138.003676] ? write_recoverydir+0x100/0x100 [nfsd] [ 138.004098] nfsctl_transaction_write+0x48/0x80 [nfsd] [ 138.004544] __vfs_write+0x37/0x160 [ 138.004982] ? selinux_file_permission+0xd7/0x110 [ 138.005401] ? security_file_permission+0x3b/0xc0 [ 138.005865] vfs_write+0xb5/0x1a0 [ 138.006267] SyS_write+0x55/0xc0 [ 138.006654] entry_SYSCALL_64_fastpath+0x1a/0xa9 [ 138.007071] RIP: 0033:0x7f7554b9dc30 [ 138.007437] RSP: 002b:00007ffc9f92c788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 138.007807] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f7554b9dc30 [ 138.008168] RDX: 0000000000000002 RSI: 00005640cd536640 RDI: 0000000000000003 [ 138.008573] RBP: 00007ffc9f92c780 R08: 0000000000000001 R09: 0000000000000002 [ 138.008918] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000000004 [ 138.009254] R13: 00005640cdbf77a0 R14: 00005640cdbf7720 R15: 00007ffc9f92c238 [ 138.009610] Code: 0f 1f 44 00 00 48 8b 87 98 00 00 00 55 48 89 e5 48 83 78 08 00 74 10 8b 05 07 42 02 00 83 f8 01 74 40 83 f8 02 74 19 31 c0 31 d2 <f7> b7 88 00 00 00 5d 89 d0 48 c1 e0 07 48 03 87 90 00 00 00 c3 [ 138.010664] RIP: svc_pool_for_cpu+0x2b/0x80 [sunrpc] RSP: ffff9873c2607c18 [ 138.011061] ---[ end trace b3468224cafa7d11 ]--- Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>		2017-04-27 17:59:00 -04:00
..
9p	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 21:44:35 -08:00
adfs
affs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
afs	afs: Don't wait for page writeback with the page lock held	2017-03-16 16:29:30 +00:00
autofs4	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
befs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
bfs
btrfs	Merge branch 'for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2017-04-14 16:53:45 -07:00
cachefiles	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ceph	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
cifs	cifs: Do not send echoes before Negotiate is complete	2017-04-17 15:44:23 -05:00
coda	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
configfs
cramfs
crypto	A code cleanup and bugfix for fs/crypto.	2017-03-25 15:36:56 -07:00
debugfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-02-23 20:33:51 -08:00
devpts
dlm	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
ecryptfs	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
efivarfs
efs
exofs
exportfs	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
ext2	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ext4	statx: Include a mask for stx_attributes in struct statx	2017-04-03 01:06:00 -04:00
f2fs	f2fs: combine nat_bits and free_nid_bitmap cache	2017-03-20 10:00:18 -04:00
fat	fat: fix using uninitialized fields of fat_inode/fsinfo_inode	2017-03-09 17:01:10 -08:00
freevxfs
fscache	KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()	2017-03-02 10:09:00 +11:00
fuse	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse	2017-03-03 12:14:13 -08:00
gfs2	gfs2: Avoid alignment hole in struct lm_lockname	2017-03-15 10:06:07 -04:00
hfs	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 21:44:35 -08:00
hfsplus	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
hostfs
hpfs	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hugetlbfs	hugetlbfs: fix offset overflow in hugetlbfs mmap	2017-04-13 18:24:21 -07:00
isofs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
jbd2	jbd2: don't leak memory if setting up journal fails	2017-03-15 15:08:48 -04:00
jffs2	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
jfs	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
kernfs	kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()	2017-03-17 10:25:59 +09:00
lockd	lockd: remove redundant check on block	2017-04-25 17:25:56 -04:00
minix	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
ncpfs	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
nfs	NFSv4.x/callback: Create the callback service through svc_create_pooled	2017-04-27 17:59:00 -04:00
nfs_common
nfsd	NFS: don't try to cross a mountpount when there isn't one there.	2017-04-25 17:25:54 -04:00
nilfs2	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
nls
notify	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ntfs	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ocfs2	net: Work around lockdep limitation in sockets that use sockets	2017-03-09 18:23:27 -08:00
omfs	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
openpromfs
orangefs	orangefs: free superblock when mount fails	2017-04-15 09:39:31 -07:00
overlayfs	overlayfs: remove now unnecessary header file include	2017-03-08 10:42:13 -08:00
proc	thp: fix MADV_DONTNEED vs clear soft dirty race	2017-04-13 18:24:21 -07:00
pstore	fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version	2017-02-24 17:46:57 -08:00
qnx4
qnx6
quota	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
ramfs
reiserfs	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
romfs
squashfs	fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version	2017-02-24 17:46:57 -08:00
sysfs	sysfs: be careful of error returns from ops->show()	2017-04-08 17:33:32 +02:00
sysv	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
tracefs
ubifs	ubifs: Fix O_TMPFILE corner case in ubifs_link()	2017-04-18 23:18:02 +02:00
udf	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
ufs
xfs	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-04-09 08:26:21 -07:00
aio.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
anon_inodes.c
attr.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
bad_inode.c	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
binfmt_aout.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
binfmt_elf.c	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
binfmt_elf_fdpic.c	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
binfmt_em86.c
binfmt_flat.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
binfmt_misc.c	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
binfmt_script.c
block_dev.c	block: Initialize bd_bdi on inode initialization	2017-03-02 08:56:59 -07:00
buffer.c	sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency	2017-03-02 08:42:37 +01:00
char_dev.c
compat.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
compat_binfmt_elf.c
compat_ioctl.c
coredump.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
dax.c	dax: fix radix tree insertion race	2017-04-08 00:47:49 -07:00
dcache.c
dcookies.c
direct-io.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
drop_caches.c
eventfd.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
eventpoll.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
exec.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
fcntl.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
fhandle.c
file.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
file_table.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
filesystems.c
fs-writeback.c	writeback: fix memory leak in wb_queue_work()	2017-03-13 08:27:34 -06:00
fs_pin.c
fs_struct.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>	2017-03-02 08:42:35 +01:00
inode.c
internal.h
ioctl.c	sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency	2017-03-02 08:42:37 +01:00
iomap.c	iomap: invalidate page caches should be after iomap_dio_complete() in direct write	2017-03-06 09:50:01 -08:00
Kconfig
Kconfig.binfmt
libfs.c	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
locks.c
Makefile
mbcache.c
mount.h	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
mpage.c	fs: add i_blocksize()	2017-02-27 18:43:46 -08:00
namei.c	vfs: don't do RCU lookup of empty pathnames	2017-04-15 09:34:52 -07:00
namespace.c	sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
no-block.c
nsfs.c	nsfs: mark dentry with DCACHE_RCUACCESS	2017-04-19 15:56:24 -07:00
open.c	vfs: wrap write f_ops with file_{start,end}_write()	2017-02-07 15:05:04 +01:00
pipe.c
pnode.c	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
pnode.h	mnt: Tuck mounts under others instead of creating shadow/side mounts.	2017-02-04 00:01:06 +13:00
posix_acl.c	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
proc_namespace.c	sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>	2017-03-02 08:42:38 +01:00
read_write.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
readdir.c
select.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
seq_file.c
signalfd.c
splice.c	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
stack.c
stat.c	statx: Include a mask for stx_attributes in struct statx	2017-04-03 01:06:00 -04:00
statfs.c
super.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2017-02-23 20:33:51 -08:00
sync.c	vfs: use helper for calling f_op->fsync()	2017-02-20 16:51:23 +01:00
timerfd.c	timerfd: Only check CAP_WAKE_ALARM when it is needed	2017-03-01 12:53:44 +01:00
userfaultfd.c	userfaultfd: report actual registered features in fdinfo	2017-04-08 00:47:48 -07:00
utimes.c
xattr.c