Hi Chris, Thanks for your response... Below is the back trace for Soft lock up occured also my host controller uses the SDHCI interface. [ 118.038802] BUG: spinlock lockup on CPU#0, mmcqd/1284, c42e7200 [ 118.043248] [<c047f164>] (dump_stack+0x0/0x14) from [<c02adf30>] (_raw_spin_lock+0x12c/0x16c) [ 118.051745] [<c02ade04>] (_raw_spin_lock+0x0/0x16c) from [<c0481c24>] (_spin_lock_irq+0x14/0x18) [ 118.060505] r8:c33b4b7c r7:c33b4a40 r6:c42e721c r5:c42e7214 r4:c4594000 [ 118.067182] [<c0481c10>] (_spin_lock_irq+0x0/0x18) from [<c0370504>] (mmc_queue_thread+0x48/0xe8) [ 118.076029] [<c03704bc>] (mmc_queue_thread+0x0/0xe8) from [<c016ef04>] (kthread+0x54/0x80) [ 118.084269] [<c016eeb0>] (kthread+0x0/0x80) from [<c015d9a8>] (do_exit+0x0/0x640) [ 118.091728] r5:00000000 r4:00000000 Regards, Madhav On Tue, May 18, 2010 at 8:39 PM, Chris Ball <cjb@xxxxxxxxxx> wrote: > Hi, > > > In one ARM based boards I am facing soft lock up issue while > > inserting/removing MMC/SD card continuously having 2K files. Can > > someone point me where should i look whether host controller > > driver or MMC block layer/Kernel block layer?? > > Could be any of the above, but perhaps most likely your host > controller driver -- which one are you using? Can you perform > alt-sysrq-t when the lockup happens, or get a kgdb backtrace? > > - Chris. > -- > Chris Ball <cjb@xxxxxxxxxx> > One Laptop Per Child > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
