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
..
blocklayout	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
filelayout	NFS client fixes for 4.11 (part 2)	2017-03-31 12:29:03 -07:00
flexfilelayout	NFS client fixes for 4.11 (part 2)	2017-03-31 12:29:03 -07:00
objlayout	lib/vsprintf.c: remove %Z support	2017-02-27 18:43:47 -08:00
cache_lib.c	sunrpc/nfs: cleanup procfs/pipefs entry in cache_detail	2017-02-08 17:02:45 -05:00
cache_lib.h
callback.c	NFSv4.x/callback: Create the callback service through svc_create_pooled	2017-04-27 17:59:00 -04:00
callback.h	nfs: add handling for CB_NOTIFY_LOCK in client	2016-09-22 13:56:04 -04:00
callback_proc.c	pNFS: Delay getting the layout header in CB_LAYOUTRECALL handlers	2016-12-01 17:21:42 -05:00
callback_xdr.c	NFS client updates for Linux 4.11	2017-03-01 16:10:30 -08:00
client.c	pNFS: return status from nfs4_pnfs_ds_connect	2017-03-17 16:07:10 -04:00
delegation.c	NFSv4: Optimise away forced revalidation when we know the attributes are OK	2016-12-01 17:21:37 -05:00
delegation.h	NFSv4: nfs_inode_find_state_and_recover() should check all stateids	2016-09-27 14:34:35 -04:00
dir.c	NFS: Fix old dentry rehash after move	2017-03-27 13:30:49 -04:00
direct.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
dns_resolve.c
dns_resolve.h
file.c	mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf	2017-02-24 17:46:54 -08:00
fscache-index.c
fscache.c
fscache.h
getroot.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
inode.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
internal.h	pNFS: return status from nfs4_pnfs_ds_connect	2017-03-17 16:07:10 -04:00
io.c	NFS: Do not serialise O_DIRECT reads and writes	2016-07-05 19:11:04 -04:00
iostat.h
Kconfig
Makefile	NFS: Do not serialise O_DIRECT reads and writes	2016-07-05 19:11:04 -04:00
mount_clnt.c
namespace.c	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
netns.h	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
nfs.h
nfs2super.c
nfs2xdr.c
nfs3_fs.h
nfs3acl.c	posix_acl: Inode acl caching fixes	2016-03-31 00:30:15 -04:00
nfs3client.c	NFS: Remove unused authflavour parameter from nfs_get_client()	2016-12-01 17:46:32 -05:00
nfs3proc.c	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
nfs3super.c
nfs3xdr.c
nfs4_fs.h	NFS: Use nfs4_setup_sequence() everywhere	2017-01-30 13:14:50 -05:00
nfs4client.c	NFSv4.1 respect server's max size in CREATE_SESSION	2017-03-17 16:07:03 -04:00
nfs4file.c	NFSv4: add flock_owner to open context	2016-12-01 17:57:27 -05:00
nfs4getroot.c
nfs4idmap.c	KEYS: Differentiate uses of rcu_dereference_key() and user_key_payload()	2017-03-02 10:09:00 +11:00
nfs4idmap.h
nfs4namespace.c	fs: Better permission checking for submounts	2017-02-02 04:36:12 +13:00
nfs4proc.c	NFSv4.1 fix infinite loop on IO BAD_STATEID error	2017-03-31 13:30:21 -04:00
nfs4renewd.c	NFSv4: Set the connection timeout to match the lease period	2017-02-09 14:15:16 -05:00
nfs4session.c	NFSv4.1: Fix regression in callback retry handling	2016-12-01 17:21:38 -05:00
nfs4session.h	NFS: Make trace_nfs4_setup_sequence() available to NFS v4.0	2017-01-30 13:14:50 -05:00
nfs4state.c	NFSv4: Fix warning for using 0 as NULL	2017-01-30 13:14:51 -05:00
nfs4super.c
nfs4sysctl.c	nfs: do not initialise statics to 0	2015-12-28 09:57:15 -05:00
nfs4trace.c	pNFS: Modify pnfs_update_layout tracepoints to use layout stateid	2015-12-28 09:57:14 -05:00
nfs4trace.h	NFS: Make trace_nfs4_setup_sequence() available to NFS v4.0	2017-01-30 13:14:50 -05:00
nfs4xdr.c	nfs4: fix a typo of NFS_ATTR_FATTR_GROUP_NAME	2017-03-13 10:39:10 -04:00
nfs42.h	NFS: Add COPY nfs operation	2016-05-17 15:47:55 -04:00
nfs42proc.c	NFSv4: Fix reboot recovery in copy offload	2017-02-22 13:49:11 -05:00
nfs42xdr.c	pNFS/flexfiles: Minor refactoring before adding iostats to layoutreturn	2016-12-03 15:37:45 -05:00
nfsroot.c
nfstrace.c
nfstrace.h	NFS client updates for Linux 4.8	2016-07-30 16:33:25 -07:00
pagelist.c	NFS: discard nfs_lockowner structure.	2016-12-01 17:58:13 -05:00
pnfs.c	pNFS: Fix a reference leak in _pnfs_return_layout	2017-01-26 15:50:41 -05:00
pnfs.h	pNFS: return status from nfs4_pnfs_ds_connect	2017-03-17 16:07:10 -04:00
pnfs_dev.c
pnfs_nfs.c	pNFS/flexfiles: never nfs4_mark_deviceid_unavailable	2017-03-17 16:07:17 -04:00
proc.c	fs: rename "rename2" i_op to "rename"	2016-09-27 11:03:58 +02:00
read.c	mm: remove page_file_index	2016-10-07 18:46:28 -07:00
super.c	NFS: tidy up nfs_show_mountd_netid	2017-01-30 13:14:50 -05:00
symlink.c	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
sysctl.c
unlink.c	qstr: constify instances in nfs	2016-07-20 23:30:06 -04:00
write.c	NFS: fix the fault nrequests decreasing for nfs_inode COPY	2017-03-17 16:03:51 -04:00