Bad: scheduling while atomic, 2.6.7

[David Ford]

AMD64, nothing special about the kernel.

Unable to handle kernel paging request at 000001083d74a4c8 RIP:
<ffffffff801ba763>{find_inode+35}
PML4 8063 PGD 0
Oops: 0000 [1] PREEMPT
CPU 0
Modules linked in: ipt_REJECT iptable_filter iptable_mangle 
ipt_MASQUERADE iptable_nat ip_conntrack ip_tables
Pid: 8598, comm: rsync Not tainted 2.6.7
RIP: 0010:[<ffffffff801ba763>] <ffffffff801ba763>{find_inode+35}
RSP: 0018:0000010017ca5b78  EFLAGS: 00010202
RAX: 000001083d74a4c8 RBX: 000001083d74a4c8 RCX: 0000010017ca5c00
RDX: ffffffff801f5f20 RSI: 000001003fe669a8 RDI: 000001003f82b578
RBP: 000001003f82b578 R08: 0000010017ca5c00 R09: 0000010012cb97b8
R10: 0000000000000001 R11: 0000000000000246 R12: 000001003f82b578
R13: 000001003fe669a8 R14: 0000010017ca5c00 R15: ffffffff801f5f20
FS:  0000002a95aa2090(0000) GS:ffffffff807fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000001083d74a4c8 CR3: 0000000000101000 CR4: 00000000000006e0
Process rsync (pid: 8598, threadinfo 0000010017ca4000, task 
000001001fd6ab10)
Stack: 0000010012cb84c8 0000010017ca5c38 000001003f82b578 000001003fe669a8
      0000010017ca5c00 ffffffff801f5f20 ffffffff801f5df0 ffffffff801bbb12
      0000000000000006 0000010017ca5c38
Call Trace:<ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5df0>{reiserfs_init_locked_inode+0}
      <ffffffff801bbb12>{iget5_locked+290} 
<ffffffff801f5fa2>{reiserfs_iget+82}
      <ffffffff801efb1a>{reiserfs_lookup+442} 
<ffffffff801a75a3>{real_lookup+131}
      <ffffffff801a7a99>{do_lookup+105} 
<ffffffff801a8a19>{link_path_walk+3881}
      <ffffffff8016e320>{poison_obj+48} <ffffffff801a90be>{path_lookup+494}
      <ffffffff801a928e>{__user_walk+62} <ffffffff801a1720>{vfs_lstat+32}
      <ffffffff801a1b5f>{sys_newlstat+31} 
<ffffffff8011221a>{system_call+126}


Code: 48 8b 03 0f 18 08 4c 39 a3 80 01 00 00 75 23 4c 89 f6 48 89
RIP <ffffffff801ba763>{find_inode+35} RSP <0000010017ca5b78>
CR2: 000001083d74a4c8
<6>note: rsync[8598] exited with preempt_count 2
bad: scheduling while atomic!

Call Trace:<ffffffff8053795e>{schedule+94} 
<ffffffff80179d5a>{zap_pmd_range+186}
      <ffffffff8017a03c>{unmap_vmas+572} <ffffffff80180b05>{exit_mmap+293}
      <ffffffff80139600>{mmput+272} <ffffffff80140fdf>{do_exit+815}
      <ffffffff8011391d>{oops_end+205} 
<ffffffff80127ab5>{do_page_fault+1109}
      <ffffffff80194610>{bh_wake_function+0} 
<ffffffff80194610>{bh_wake_function+0}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff80112b3d>{error_exit+0}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5f20>{reiserfs_find_actor+0}
      <ffffffff801ba763>{find_inode+35} 
<ffffffff801ef692>{linear_search_in_dir_item+402}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5df0>{reiserfs_init_locked_inode+0}
      <ffffffff801bbb12>{iget5_locked+290} 
<ffffffff801f5fa2>{reiserfs_iget+82}
      <ffffffff801efb1a>{reiserfs_lookup+442} 
<ffffffff801a75a3>{real_lookup+131}
      <ffffffff801a7a99>{do_lookup+105} 
<ffffffff801a8a19>{link_path_walk+3881}
      <ffffffff8016e320>{poison_obj+48} <ffffffff801a90be>{path_lookup+494}
      <ffffffff801a928e>{__user_walk+62} <ffffffff801a1720>{vfs_lstat+32}
      <ffffffff801a1b5f>{sys_newlstat+31} 
<ffffffff8011221a>{system_call+126}

lib/dec_and_lock.c:32: spin_lock(fs/inode.c:ffffffff8069c820) already 
locked by fs/inode.c/775
Unable to handle kernel paging request at 0000000a00000000 RIP:
<ffffffff801ba763>{find_inode+35}
PML4 4f20067 PGD 0
Oops: 0000 [2] PREEMPT
CPU 0
Modules linked in: ipt_REJECT iptable_filter iptable_mangle 
ipt_MASQUERADE iptable_nat ip_conntrack ip_tables
Pid: 29539, comm: gmake Not tainted 2.6.7
RIP: 0010:[<ffffffff801ba763>] <ffffffff801ba763>{find_inode+35}
RSP: 0018:0000010028399b78  EFLAGS: 00010206
RAX: 0000000a00000000 RBX: 0000000a00000000 RCX: 0000010028399c00
RDX: ffffffff801f5f20 RSI: 000001003fe7ea40 RDI: 000001003f82b578
RBP: 000001003f82b578 R08: 0000010028399c00 R09: 0000010009798150
R10: 0000000000000001 R11: 0000000000000246 R12: 000001003f82b578
R13: 000001003fe7ea40 R14: 0000010028399c00 R15: ffffffff801f5f20
FS:  0000002a95aa4090(0000) GS:ffffffff807fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000a00000000 CR3: 0000000000101000 CR4: 00000000000006e0
Process gmake (pid: 29539, threadinfo 0000010028398000, task 
00000100219560b0)
Stack: 000001002113b0e0 0000010028399c38 000001003f82b578 000001003fe7ea40
      0000010028399c00 ffffffff801f5f20 ffffffff801f5df0 ffffffff801bbb12
      0000000000000004 0000010028399c38
Call Trace:<ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5df0>{reiserfs_init_locked_inode+0}
      <ffffffff801bbb12>{iget5_locked+290} 
<ffffffff801f5fa2>{reiserfs_iget+82}
      <ffffffff801efb1a>{reiserfs_lookup+442} 
<ffffffff801a75a3>{real_lookup+131}
      <ffffffff801a7a99>{do_lookup+105} 
<ffffffff801a8a19>{link_path_walk+3881}
      <ffffffff8016e320>{poison_obj+48} <ffffffff801a90be>{path_lookup+494}
      <ffffffff801a928e>{__user_walk+62} <ffffffff801a16c3>{vfs_stat+35}
      <ffffffff801a1b0f>{sys_newstat+31} 
<ffffffff8011221a>{system_call+126}


Code: 48 8b 03 0f 18 08 4c 39 a3 80 01 00 00 75 23 4c 89 f6 48 89
RIP <ffffffff801ba763>{find_inode+35} RSP <0000010028399b78>
CR2: 0000000a00000000
<6>note: gmake[29539] exited with preempt_count 2
bad: scheduling while atomic!

Call Trace:<ffffffff8053795e>{schedule+94} 
<ffffffff80179d5a>{zap_pmd_range+186}
      <ffffffff8017a03c>{unmap_vmas+572} <ffffffff80180b05>{exit_mmap+293}
      <ffffffff80139600>{mmput+272} <ffffffff80140fdf>{do_exit+815}
      <ffffffff8011391d>{oops_end+205} 
<ffffffff80127ab5>{do_page_fault+1109}
      <ffffffff80173bc7>{mark_page_accessed+39} 
<ffffffff8019748c>{__find_get_block+252}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff80112b3d>{error_exit+0}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5f20>{reiserfs_find_actor+0}
      <ffffffff801ba763>{find_inode+35} 
<ffffffff801ef692>{linear_search_in_dir_item+402}
      <ffffffff801f5f20>{reiserfs_find_actor+0} 
<ffffffff801f5df0>{reiserfs_init_locked_inode+0}
      <ffffffff801bbb12>{iget5_locked+290} 
<ffffffff801f5fa2>{reiserfs_iget+82}
      <ffffffff801efb1a>{reiserfs_lookup+442} 
<ffffffff801a75a3>{real_lookup+131}
      <ffffffff801a7a99>{do_lookup+105} 
<ffffffff801a8a19>{link_path_walk+3881}
      <ffffffff8016e320>{poison_obj+48} <ffffffff801a90be>{path_lookup+494}
      <ffffffff801a928e>{__user_walk+62} <ffffffff801a16c3>{vfs_stat+35}
      <ffffffff801a1b0f>{sys_newstat+31} 
<ffffffff8011221a>{system_call+126}

fs/fs-writeback.c:96: spin_lock(fs/inode.c:ffffffff8069c820) already 
locked by fs/inode.c/775

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