I get the below crash on the 2nd recall after the client returned
NFS_ERR_DELAY, and the server sends a retry.
602678a8: [<6001585b>] panic_exit+0x2f/0x45
602678c8: [<60049a3e>] notifier_call_chain+0x32/0x5e
60267908: [<60049a8c>] atomic_notifier_call_chain+0x13/0x15
60267918: [<601b3b9b>] panic+0x105/0x1dc
602679c8: [<601b6056>] _raw_spin_unlock_irqrestore+0x18/0x1c
602679e8: [<60016e5f>] free_irqs+0x74/0xde
60267a18: [<60015162>] relay_signal+0x38/0x79
60267a28: [<60012cef>] sigio_handler+0x5a/0x5f
60267a48: [<600224d0>] sig_handler_common+0x84/0x98
60267a68: [<6002257d>] real_alarm_handler+0x3c/0x3e
60267af0: [<6012fc02>] radix_tree_delete+0x101/0x1d7
60267b38: [<6002252f>] unblock_signals+0x4b/0x5d
60267b78: [<60022616>] sig_handler+0x30/0x3b
60267b98: [<60022848>] handle_signal+0x6d/0xa3
60267be8: [<600241c8>] hard_handler+0x10/0x14
60267ca8: [<7c1d5dfb>] do_callback_layoutrecall+0x457/0x993 [nfs]
(gdb) list *(do_callback_layoutrecall+0x457)
0x2de1f is in do_callback_layoutrecall (/usr0/export/dev/bharrosh/git/pub/linux-pnfs/fs/nfs/callback_proc.c:282).
277 dprintk("%s %d\n", __func__, __LINE__);
278 spin_unlock(&clp->cl_lock);
279 dprintk("%s %d\n", __func__, __LINE__);
280
281 BUG_ON(!lo);
282 BUG_ON(!lo->plh_inode);
283 spin_lock(&lo->plh_inode->i_lock);
284 dprintk("%s %d\n", __func__, __LINE__);
285 if (rv == NFS4_OK) {
286 lo->plh_block_lgets++;
Prints and BUG_ONs added by me.
Any body wants to fix this. How would lo->plh_inode be null, and why only the
second time.
Thanks
Boaz
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