Hi. I believe I'm running into the same problem that is reported here: http://thread.gmane.org/gmane.linux.kernel/884017 It looks like the patch that helped the original poster got into 2.6.32, but I still get the hang on suspend. I've tracked it down to the bdi_wait_on_work_clear() function in fs/fs-writeback.c. I put a backtrace dump in that function, and it's included below. This is on a PXA320 device, but as far as I can tell, it's not caused by pxamci.c. [<c00c1d58>] (sync_inodes_sb+0x0/0x1c8) from [<c00c62c0>] (__sync_filesystem+0xb4/0xe8) r7:00000002 r6:c7fadce0 r5:00000001 r4:c7e14e00 [<c00c620c>] (__sync_filesystem+0x0/0xe8) from [<c00c64d8>] (sync_filesystem+0x5c/0x74) r5:c7408340 r4:c7e14e00 [<c00c647c>] (sync_filesystem+0x0/0x74) from [<c00cf600>] (fsync_bdev+0x38/0x8c) r4:c7e14e00 [<c00cf5c8>] (fsync_bdev+0x0/0x8c) from [<c017a650>] (invalidate_partition+0x38/0x8c) r5:c7408340 r4:c7408340 [<c017a618>] (invalidate_partition+0x0/0x8c) from [<c00ecb34>] (del_gendisk+0x4c/0x1a8) r5:c7b2de00 r4:c7b2d800 [<c00ecae8>] (del_gendisk+0x0/0x1a8) from [<c025d7b4>] (mmc_blk_remove+0x44/0x9c) r6:c7b2d608 r5:c7b2ede0 r4:c7b2ede4 [<c025d770>] (mmc_blk_remove+0x0/0x9c) from [<c02574cc>] (mmc_bus_remove+0x2c/0x44) r6:c7aada08 r5:c04523b0 r4:c7b2d608 [<c02574a0>] (mmc_bus_remove+0x0/0x44) from [<c01c3ed0>] (__device_release_driver+0x9c/0x170) r5:c04523b0 r4:c7b2d608 [<c01c3e34>] (__device_release_driver+0x0/0x170) from [<c01c4074>] (device_release_driver+0x24/0x30) r5:c7b2d63c r4:c7b2d608 [<c01c4050>] (device_release_driver+0x0/0x30) from [<c01c3154>] (bus_remove_device+0xb4/0x10c) r5:c7b2d610 r4:c7b2d608 [<c01c30a0>] (bus_remove_device+0x0/0x10c) from [<c01c11a8>] (device_del+0x190/0x2b8) r5:c7b2d608 r4:c7b2d600 [<c01c1018>] (device_del+0x0/0x2b8) from [<c02578e0>] (mmc_remove_card+0x54/0xb0) r6:00000000 r5:c7b2d608 r4:c7b2d600 [<c025788c>] (mmc_remove_card+0x0/0xb0) from [<c02593a0>] (mmc_sd_remove+0x38/0x80) r5:c042eb48 r4:c7aada00 [<c0259368>] (mmc_sd_remove+0x0/0x80) from [<c02573cc>] (mmc_suspend_host+0x158/0x17c) r4:c7aada00 [<c0257274>] (mmc_suspend_host+0x0/0x17c) from [<c025eb04>] (pxamci_suspend+0x20/0x2c) r6:00000000 r5:c042eb48 r4:c03556f8 [<c025eae4>] (pxamci_suspend+0x0/0x2c) from [<c01c5498>] (platform_pm_suspend+0x38/0x68) [<c01c5460>] (platform_pm_suspend+0x0/0x68) from [<c01c79d8>] (pm_op+0x3c/0x94) [<c01c799c>] (pm_op+0x0/0x94) from [<c01c7e64>] (dpm_suspend_start+0x2c4/0x594) r5:c042eb48 r4:c042eba0 [<c01c7ba0>] (dpm_suspend_start+0x0/0x594) from [<c0071954>] (suspend_devices_and_enter+0x64/0x200) [<c00718f0>] (suspend_devices_and_enter+0x0/0x200) from [<c0071bf8>] (enter_state+0x108/0x130) r6:c03ca8e0 r5:00000003 r4:00000000 [<c0071af0>] (enter_state+0x0/0x130) from [<c0071c40>] (pm_suspend+0x20/0x2c) r6:00004102 r5:c6c71740 r4:00000003 [<c0071c20>] (pm_suspend+0x0/0x2c) from [<c01ba2c4>] (apm_ioctl+0x84/0x1c8) [<c01ba240>] (apm_ioctl+0x0/0x1c8) from [<c00b2700>] (vfs_ioctl+0x74/0x78) r6:00004102 r5:c01ba240 r4:c7f0d500 [<c00b268c>] (vfs_ioctl+0x0/0x78) from [<c00b29b4>] (do_vfs_ioctl+0x98/0x594) r5:00000000 r4:00000003 [<c00b291c>] (do_vfs_ioctl+0x0/0x594) from [<c00b2ef0>] (sys_ioctl+0x40/0x68) r9:c7fac000 r8:c0027108 r7:00000036 r6:00004102 r5:fffffff7 r4:c7f0d500 [<c00b2eb0>] (sys_ioctl+0x0/0x68) from [<c0026f60>] (ret_fast_syscall+0x0/0x28) r6:00000000 r5:00000003 r4:00000003 -- 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
