Description of problem: Random, spontaneous error messages from kernel: Badness in interruptible_sleep_on_timeout at kernel/sched.c:3500 (Not tainted) [<c033d1fc>] interruptible_sleep_on_timeout+0xf7/0x113 [<c013096b>] group_send_sig_info+0x5d/0x67 [<c012114e>] default_wake_function+0x0/0xc [<eec7f4db>] lockd_down+0xbe/0x120 [lockd] [<eec93df5>] nfs_kill_super+0x46/0x5b [nfs] [<c01745ad>] deactivate_super+0x80/0x91 [<c01898fd>] sys_umount+0x33/0x73 [<c018644b>] destroy_inode+0x3f/0x4e [<c01084d4>] do_syscall_trace+0x1e3/0x1f5 [<c0189954>] sys_oldumount+0x17/0x1b [<c01040a5>] syscall_call+0x7/0xb Version-Release number of selected component (if applicable): kernel-smp-2.6.14-1.1688_FC5 How reproducible: occurs spontaneously Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
I think this may be only with SMP kernels. The report above was on an i686 dual process machine. I also get a similar message on a single process x86_64 machine (albeit this one is tainted with NVIDIA module). Badness in interruptible_sleep_on_timeout at kernel/sched.c:3500 (Tainted: P ) Call Trace:<ffffffff80369050>{interruptible_sleep_on_timeout+131} <ffffffff8013851a>{default_wake_function+0} <ffffffff88a6a357>{:lockd:lockd_down+207} <ffffffff88a8796c>{:nfs:nfs_kill_super+77} <ffffffff801963f9>{deactivate_super+132} <ffffffff801acea3>{sys_umount+662} <ffffffff80190fd8>{__fput+340} <ffffffff801abba5>{mntput_no_expire+28} <ffffffff8018e546>{filp_close+90} <ffffffff8010fb0a>{system_call+126}
I notice that NFS is implicated in both cases, but I'm not sure what extra info you will need? I'm using NFS over UDP to an old/stable RedHat-9 file server.
Steve, is that the case where it needs kernel_lock around the sleep_on?
*** This bug has been marked as a duplicate of 166152 ***