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[Bug 311] ioctl hang in 2.6.x kernels with quota support

To: xfs-master@xxxxxxxxxxx
Subject: [Bug 311] ioctl hang in 2.6.x kernels with quota support
From: bugzilla-daemon@xxxxxxxxxxx
Date: Tue, 4 May 2004 16:50:00 -0700
Sender: linux-xfs-bounce@xxxxxxxxxxx
http://oss.sgi.com/bugzilla/show_bug.cgi?id=311





------- Additional Comments From steven.wilton@xxxxxxxxxxxxxx  2004-04-05 16:49 
PDT -------
OK, with 2.6.5 and 2.6.6-rc3 we get a "kernel BUG" error in the kernel log.  On
the 1st of May we got the following from a 2.6.5 kernel (after 2 weeks of 
uptime):

xfs_iget_core: ambiguous vns: vp/0xc31b9b20, invp/0xe53feac0
------------[ cut here ]------------
kernel BUG at fs/xfs/support/debug.c:106!
invalid operand: 0000 [#1]
CPU:    0
EIP:    0060:[cmn_err+136/152]    Not tainted
EFLAGS: 00010246   (2.6.5) 
EIP is at cmn_err+0x88/0x98
eax: 00000040   ebx: 00000293   ecx: 00000001   edx: c039ada4
esi: c034fb27   edi: c0454f3e   ebp: 00000000   esp: ed823a70
ds: 007b   es: 007b   ss: 0068
Process lockd (pid: 488, threadinfo=ed822000 task=ed847250)
Stack: ef24f0d8 ef2c4d28 0002008a 00000000 ef2bfc00 c0206432 00000000 c034b900 
       c31b9b20 e53feac0 e53feae0 e53feac0 00000008 ef2c4c00 e810d790 c02067a4 
       e53feac0 ef2c4c00 00000000 0002008a 00000000 00000008 ed823b18 00000000 
Call Trace:
[xfs_iget_core+246/1024] xfs_iget_core+0xf6/0x400
[xfs_iget+104/280] xfs_iget+0x68/0x118
[xfs_vget+66/184] xfs_vget+0x42/0xb8
[vfs_vget+39/44] vfs_vget+0x27/0x2c
[linvfs_get_dentry+72/136] linvfs_get_dentry+0x48/0x88
[find_exported_dentry+61/1436] find_exported_dentry+0x3d/0x59c
[ip_finish_output2+319/396] ip_finish_output2+0x13f/0x18c
[ip_finish_output2+0/396] ip_finish_output2+0x0/0x18c
[nf_hook_slow+221/288] nf_hook_slow+0xdd/0x120
[dst_output+0/36] dst_output+0x0/0x24
[ip_finish_output+467/476] ip_finish_output+0x1d3/0x1dc
[ip_finish_output2+0/396] ip_finish_output2+0x0/0x18c
[dst_output+0/36] dst_output+0x0/0x24
[nf_hook_slow+160/288] nf_hook_slow+0xa0/0x120
[ip_output+110/116] ip_output+0x6e/0x74
[dst_output+17/36] dst_output+0x11/0x24
[nf_hook_slow+221/288] nf_hook_slow+0xdd/0x120
[ip_push_pending_frames+745/916] ip_push_pending_frames+0x2e9/0x394
[dst_output+0/36] dst_output+0x0/0x24
[udp_push_pending_frames+464/496] udp_push_pending_frames+0x1d0/0x1f0
[release_sock+78/96] release_sock+0x4e/0x60
[udp_sendmsg+1411/1584] udp_sendmsg+0x583/0x630
[ip_append_data+724/1720] ip_append_data+0x2d4/0x6b8
[udp_sendmsg+1341/1584] udp_sendmsg+0x53d/0x630
[groups_free+59/68] groups_free+0x3b/0x44
[export_decode_fh+102/110] export_decode_fh+0x66/0x6e
[nfsd_acceptable+0/204] nfsd_acceptable+0x0/0xcc
[fh_verify+920/1364] fh_verify+0x398/0x554
[nfsd_acceptable+0/204] nfsd_acceptable+0x0/0xcc
[nfsd_open+44/336] nfsd_open+0x2c/0x150
[nlm_fopen+123/256] nlm_fopen+0x7b/0x100
[nlm_lookup_file+339/504] nlm_lookup_file+0x153/0x1f8
[nlm4svc_retrieve_args+116/192] nlm4svc_retrieve_args+0x74/0xc0
[nlm4svc_proc_unlock+97/188] nlm4svc_proc_unlock+0x61/0xbc
[svc_process+765/1528] svc_process+0x2fd/0x5f8
[lockd+336/508] lockd+0x150/0x1fc
[lockd+0/508] lockd+0x0/0x1fc
[kernel_thread_helper+5/12] kernel_thread_helper+0x5/0xc
 
Code: 0f 0b 6a 00 0e fb 34 c0 5b 5e 5f 5d 59 c3 89 f6 83 ec 04 55 




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