Hi, I have the same problem with umount SD card and UDisk after they are removed from the board. The command "umount" never return, so as command "sync".
I am unsing DM365 EVM and PSP 03.01.00.37(Linux kernel 2.6.32-rc1). I also found the v2.6.32-davinci1 kernel in ti-davinci git tree has fix the problem， just as Nathan has said. But I can't find what's wrong with it and which commit I should merge, can anyone help me? Best regargds Frank ps: this is the error message : INFO: task umount:1892 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. umount D c03520d8 0 1892 1323 0x00000000 Backtrace: [<c0351dec>] (schedule+0x0/0x370) from [<c00cc0dc>] (bdi_sched_wait+0x10/0x18) [<c00cc0cc>] (bdi_sched_wait+0x0/0x18) from [<c0352b88>] (__wait_on_bit+0x64/0xac) [<c0352b24>] (__wait_on_bit+0x0/0xac) from [<c0352c4c>] (out_of_line_wait_on_bit+0x7c/0x88) [<c0352bd0>] (out_of_line_wait_on_bit+0x0/0x88) from [<c00cc174>] (sync_inodes_sb+0x90/0x178) [<c00cc0e4>] (sync_inodes_sb+0x0/0x178) from [<c00d0460>] (__sync_filesystem+0x38/0x64) [<c00d0428>] (__sync_filesystem+0x0/0x64) from [<c00d069c>] (sync_filesystem+0x58/0x60) r5:c4656000 r4:c459ee00 [<c00d0644>] (sync_filesystem+0x0/0x60) from [<c00b07f8>] (generic_shutdown_super+0x38/0x138) r4:c459ee00 [<c00b07c0>] (generic_shutdown_super+0x0/0x138) from [<c00b0918>] (kill_block_super+0x20/0x38) r6:c3e6ec68 r5:00000003 r4:c301bb40 [<c00b08f8>] (kill_block_super+0x0/0x38) from [<c00b0c94>] (deactivate_super+0x68/0x80) r5:c046ca3c r4:c459ee00 [<c00b0c2c>] (deactivate_super+0x0/0x80) from [<c00c65b4>] (mntput_no_expire+0x94/0xe0) r5:c459ee00 r4:c3e6ec00 [<c00c6520>] (mntput_no_expire+0x0/0xe0) from [<c00c7e7c>] (sys_umount+0x2c0/0x2f4) r7:c3e6ec00 r6:c3e6ec00 r5:c3e6ec18 r4:c3e6ebf8 [<c00c7bbc>] (sys_umount+0x0/0x2f4) from [<c003ee60>] (ret_fast_syscall+0x0/0x28)
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