On 10/08/2010 08:42 PM, Suresh Jayaraman wrote: > Hi Steve, > > When I try to mount a smb2 share and do an `ls' and basic file operations > I get this oops. My smb2 git tree up-to-date with top-most commit: To be precise, the oops happens when I try to do an `ls -l`. > commit 17e0c71f49f98c1fc0e8eb34775eb05d2388edd2 > Author: Steve French <sfrench@xxxxxxxxxx> > Date: Mon Sep 27 11:22:40 2010 -0500 > > > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211947] BUG: unable to handle kernel NULL pointer dereference at (null) > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] IP: [<e0b1859a>] small_smb2_init+0x48a/0x570 [smb2] > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] *pdpt = 000000001cc22001 *pde = 0000000000000000 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Oops: 0000 [#1] PREEMPT SMP > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/PNP0C0A:00/power_supply/BAT0/energy_full > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Modules linked in: smb2 fscache snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device edd af_packet mperf fuse loop dm_mod snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer ppdev snd parport_pc soundcore parport battery ac button snd_page_alloc sg e1000 pcspkr joydev i2c_piix4 fan processor thermal thermal_sys > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Pid: 3098, comm: df Not tainted 2.6.36-rc4-12-desktop #2 /VirtualBox > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] EIP: 0060:[<e0b1859a>] EFLAGS: 00010213 CPU: 0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] EIP is at small_smb2_init+0x48a/0x570 [smb2] > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] EAX: df9fe2c0 EBX: df98a400 ECX: df98a40c EDX: 00000000 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] ESI: 00000000 EDI: dfbcde54 EBP: dfbcde18 ESP: dfbcddd0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Process df (pid: 3098, ti=dfbcc000 task=de5d0130 task.ti=dfbcc000) > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Stack: > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] 3939312e 5d323438 00000020 dfbcde25 dfbcde54 00000202 dfbcde16 df98a414 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] <0> c07c5f80 00030005 dfbcde16 dfbcde9a dfbcded8 df98a400 dfbcde18 dfbcde9a > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] <0> fffffffb df98a400 dfbcde64 e0b19081 e0b2c2be e0b2c1f1 de11921c dfbcded4 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Call Trace: > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<e0b19081>] ? SMB2_open+0x61/0x210 [smb2] > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c0303d2f>] ? link_path_walk+0x2df/0x8f0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<e0b174e6>] ? smb2_statfs+0x96/0x180 [smb2] > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c031cf4d>] ? statfs_by_dentry+0x5d/0x80 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c031cf8d>] ? vfs_statfs+0x1d/0xc0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c031d04b>] ? do_statfs64+0x1b/0x40 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c031d27a>] ? sys_statfs64+0x5a/0x90 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] [<c0202dd8>] ? sysenter_do_call+0x12/0x28 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] Code: d0 5a ae df e9 e1 fb ff ff b8 5c 77 b3 e0 e8 8e 86 ae df 8b 43 0c 8d 4b 0c 39 c1 8b 10 75 06 eb 0e 89 d0 89 f2 80 48 4c 02 39 ca <8b> 32 75 f2 b8 5c 77 b3 e0 e8 98 83 ae df 8b 45 d8 8b 4b 2c 8b > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] EIP: [<e0b1859a>] small_smb2_init+0x48a/0x570 [smb2] SS:ESP 0068:dfbcddd0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.212396] CR2: 0000000000000000 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.238770] ---[ end trace 1f484c3add74651c ]--- > > > sFYI output (snipped) > > <snip> > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207890] fs/smb2/smb2pdu.c: negotiated smb2 dialect > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207892] fs/smb2/sess.c: Security Mode: 0x1 Capabilities: 0x1 TimeAdjust: 0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207894] fs/smb2/smb2pdu.c: Session Setup > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207896] fs/smb2/smb2pdu.c: sec_flags 0x7 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207899] fs/smb2/transport.c: Credits: 20 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207900] fs/smb2/transport.c: For smb_command 1 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.207902] fs/smb2/transport.c: Sending smb: total_len 124 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: rfc1002 length 0x10e > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: num_bytes to read from socket 64 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: read from socket returns 0 with total_read 64 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: before find owner for 119 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: After find owner for 119 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] fs/smb2/demultiplex.c: num_bytes to read from socket 202 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209018] Status code returned 0xc0000016 STATUS_MORE_PROCESSING_REQUIRED > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/maperror.c: Mapping SMB2 status code -1073741802 to POSIX err -5 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/misc.c: Null buffer passed to smb2_small_buf_release > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/smb2pdu.c: sess setup returned buftype 1 with rc -5 status 0xc0000016 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/smb2pdu.c: sec_flags 0x7 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/transport.c: Credits: 39 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/transport.c: For smb_command 1 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.209282] fs/smb2/transport.c: Sending smb: total_len 196 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211763] fs/smb2/demultiplex.c: rfc1002 length 0x4c > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211779] fs/smb2/demultiplex.c: num_bytes to read from socket 64 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211794] fs/smb2/demultiplex.c: read from socket returns 0 with total_read 64 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211807] fs/smb2/demultiplex.c: before find owner for 120 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211820] fs/smb2/demultiplex.c: After find owner for 120 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211832] fs/smb2/demultiplex.c: num_bytes to read from socket 8 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211882] fs/smb2/misc.c: Null buffer passed to smb2_small_buf_release > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211895] fs/smb2/smb2pdu.c: sess setup returned buftype 1 with rc 0 status 0x0 > Oct 8 20:21:34 linux-duw1 kernel: [ 2040.211907] fs/smb2/sess.c: SMB2 Session Established successfully > </snip> > > -- Suresh Jayaraman -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
