Debug: sleeping function called from invalid context at fs/file_table.c:124

["Gagan Grover" <gagan.linux@xxxxxxxxx>]

I am getting below problem. What is the reason behind this ?

Debug: sleeping function called from invalid context at fs/file_table.c:124
in_atomic():1[expected: 0], irqs_disabled():0

Call Trace:<ffffffff80132c79>{__might_sleep+173} <ffffffff8017a1f9>{__fput+41}
      <ffffffff80178e44>{filp_close+103} <ffffffff80178ecd>{sys_close+130}
      <ffffffff8011026a>{system_call+126}
bad: scheduling while atomic!

Call Trace:<ffffffff803095d1>{schedule+75} <ffffffff8018f019>{dput+56}
      <ffffffff8017a2cd>{__fput+253} <ffffffff80178e44>{filp_close+103}
      <ffffffff801102d4>{sysret_careful+13}
Unable to handle kernel paging request at 00000012221e5088 RIP:
<ffffffff80309dfa>{schedule+2164}
PML4 12a183067 PGD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in: dbg(U) ccp_ib(U) ccp(U) xpc4drvr(U) windrvr6(U) md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core nfs lockd nfs_acl sunrpc rdma_ucd
Pid: 29040, comm: dbg_mr_create Tainted: PF     2.6.9-42.ELsmp
RIP: 0010:[<ffffffff80309dfa>] <ffffffff80309dfa>{schedule+2164}
RSP: 0018:0000010129527eb0  EFLAGS: 00010006
RAX: 00000012a1d00000 RBX: 0000010005d42030 RCX: 0000000000000003
RDX: ffffffff8051ad60 RSI: 0000010138a927f0 RDI: 0000010138a927f0
RBP: 0000010129527f70 R08: ffffffff803e1ee8 R09: 0000000000000000
R10: 0000000100000000 R11: 0000000000000021 R12: 0000010001045120
R13: 0000010138a927f0 R14: 00000100010447e0 R15: 00000100010547e0
FS:  0000002a95579b00(0000) GS:ffffffff804e5080(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000012221e5088 CR3: 0000000000101000 CR4: 00000000000006e0
Process dbg_mr_create (pid: 29040, threadinfo 0000010129526000, task 0000010138a927f0)
Stack: 0000010129538b88 0000001900000075 0000010138a927f0 0000000000000075
      0000010001045a40 0000000037f05c80 0000010138a927f0 00000000055e8de4
      000122486d3e5ad1 0000010138a927f0
Call Trace:<ffffffff80178e44>{filp_close+103} <ffffffff801102d4>{sysret_careful+13}


Code: 48 03 90 88 50 4e 80 48 ff 42 08 48 8b 47 50 48 2b 85 78 ff
RIP <ffffffff80309dfa>{schedule+2164} RSP <0000010129527eb0>
CR2: 00000012221e5088

NMI Watchdog detected LOCKUP, CPU=2, registers:
CPU 2
Modules linked in: dbg(U) ccp_ib(U) ccp(U) xpc4drvr(U) windrvr6(U) md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core nfs lockd nfs_acl sunrpc rdma_ucd
Pid: 2785, comm: klogd Tainted:PF     2.6.9-42.ELsmp
RIP: 0010:[<ffffffff8030b3a6>] <ffffffff8030b3a6>{.text.lock.spinlock+2}
RSP: 0018:0000010136f3fd78  EFLAGS: 00000082
RAX: 0000000000000000 RBX: 00000100010447e0 RCX: 0000000000000000
RDX: 0000000000000005 RSI: 0000000000000008 RDI: 00000100010447e0
RBP: 0000010136f3fe48 R08: ffffffff80467640 R09: 0000000000000008
R10: 0000000000000000 R11: 000000000000000a R12: 0000000000000fff
R13: 0000000000000000 R14: 00000100010547e0 R15: 0000000000000000
FS:  0000002a958a0b00(0000) GS:ffffffff804e5180(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000006c3b30 CR3: 0000000005d6e000 CR4: 00000000000006e0
Process klogd (pid: 2785, threadinfo 0000010136f3e000, task 0000010005d42030)
Stack: 0000000000000000 ffffffff803098a3 0000010136f3fd90 0000000000000000
      0000010100000000 0000010136f3fdc8 0000000000000001 0000000200000000
      0000010005d42030 0000000000000d14
Call Trace:<ffffffff803098a3>{schedule+797} <ffffffff80137c84>{do_syslog+300}
      <ffffffff80135752>{autoremove_wake_function+0} <ffffffff80135752>{autoremove_wake_function+0}
      <ffffffff80135752>{autoremove_wake_function+0} <ffffffff801ae742>{kmsg_read+56}
      <ffffffff801794df>{vfs_read+207} <ffffffff80179736>{sys_read+69}
      <ffffffff8011026a>{system_call+126}

Code: 83 3b 00 7e f9 e9 60 fc ff ff f3 90 83 3b 00 7e f9 e9 ce fc
Kernel panic - not syncing: nmi watchdog