Messages in this thread | | | Date | Wed, 29 Aug 2007 12:12:25 -0500 | From | "Steve French (smfltc)" <> | Subject | Re: [linux-cifs-client] Re: BUG: scheduling while atomic - linux 2.6.22 |
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Dave Kleikamp wrote:
>On Tue, 2007-08-28 at 07:11 +0800, Michael Deegan wrote: > > >>Hi, >> >>On Tue Aug 7 16:00:19 GMT 2007, Martin Koegler wrote: >> >> >>>A vanilla 2.6.22 kernel (SMP PREEMPT i686) produced the following messages, while working with a CIFS mount point: >>> >>> >>Aug 27 22:33:08 wibble kernel: BUG: scheduling while atomic: bash/0x00000001/4077 >>Aug 27 22:33:08 wibble kernel: >>Aug 27 22:33:08 wibble kernel: Call Trace: >>Aug 27 22:33:08 wibble kernel: [<ffffffff805265df>] __sched_text_start+0x5f/0x79b >>Aug 27 22:33:08 wibble kernel: [<ffffffff8049cb7a>] kernel_sendmsg+0x2c/0x3e >>Aug 27 22:33:08 wibble kernel: [<ffffffff8032ba42>] wait_for_response+0xbe/0x155 >>Aug 27 22:33:08 wibble kernel: [<ffffffff802392bf>] autoremove_wake_function+0x0/0x2e >>Aug 27 22:33:08 wibble kernel: [<ffffffff8032c0e1>] SendReceive+0x1fb/0x3f8 >>Aug 27 22:33:08 wibble kernel: [<ffffffff803192c2>] CIFSSMBOpen+0x1c6/0x27a >>Aug 27 22:33:08 wibble kernel: [<ffffffff80323b8a>] cifs_reopen_file+0x1ea/0x356 >>Aug 27 22:33:08 wibble kernel: [<ffffffff8032455c>] find_writable_file+0x84/0xe7 >>Aug 27 22:33:08 wibble kernel: [<ffffffff80324b51>] is_size_safe_to_change+0x16/0x4e >>Aug 27 22:33:08 wibble kernel: [<ffffffff8032fbc7>] fill_in_inode+0x270/0x4ec >>Aug 27 22:33:08 wibble kernel: [<ffffffff80330c67>] cifs_readdir+0xe24/0x1071 >>Aug 27 22:33:08 wibble kernel: [<ffffffff802733c8>] filldir64+0x0/0xb8 >>Aug 27 22:33:08 wibble kernel: [<ffffffff80218c71>] do_page_fault+0x40b/0x74a >>Aug 27 22:33:08 wibble kernel: [<ffffffff80527ffb>] __mutex_lock_slowpath+0x234/0x23f >>Aug 27 22:33:08 wibble kernel: [<ffffffff802733c8>] filldir64+0x0/0xb8 >>Aug 27 22:33:08 wibble kernel: [<ffffffff80273594>] vfs_readdir+0x5d/0x92 >>Aug 27 22:33:08 wibble kernel: [<ffffffff8027363e>] sys_getdents64+0x75/0xba >>Aug 27 22:33:08 wibble kernel: [<ffffffff8052948d>] error_exit+0x0/0x84 >>Aug 27 22:33:08 wibble kernel: [<ffffffff8020958e>] system_call+0x7e/0x83 >>Aug 27 22:33:08 wibble kernel: >> >>I'm using a 2.6.22.1 kernel (with SMP and PREEMPT, including BKL) on Debian >>etch AMD64, and Samba 3.0.24-6etch4. >> >> > >This is a known problem that is fixed in 2.6.23-rc4. cifs_readdir() >takes a spinlock and calls a blocking function. The fix is here: >http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a403a0a370946e7dbcda6464a3509089daee54bc > >Steve, >Has this patch been submitted to the stable kernel? > > > No - but seems like a resonable idea, although a little larger than typical patch to stable kernel. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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