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<div><span></span>Dear all:</div><div> I met a problem as below, what the function of <span style="font-size: 10.5pt; line-height: 1.5; background-color: window;">walk_page_range??</span></div><div><span style="background-color: rgba(0, 0, 0, 0);">Exception Class: Kernel (KE)
<br>PC is at [<ffffffc00017fc90>] walk_page_range+0x3c/0x314
<br>
<br>Current Executing Process:
<br>[Binder_C, 3611][main, 354]
<br>
<br>Backtrace:
<br>[<ffffffc0009f21dc>] __do_kernel_fault.part.5+0x70/0x84
<br>[<ffffffc0000942f4>] do_bad_area+0x90/0x94
<br>[<ffffffc000094340>] do_translation_fault+0x30/0x4c
<br>[<ffffffc0000813fc>] do_mem_abort+0x38/0x98
<br>[<ffffffc000083c58>] el1_da+0x1c/0x88
<br>[<ffffffc0001eb3e0>] show_smap+0x88/0x284
<br>[<ffffffc0001eb5e8>] show_pid_smap+0xc/0x18
<br>[<ffffffc0001aefb8>] seq_read+0x1a4/0x40c
<br>[<ffffffc00018e75c>] vfs_read+0x88/0x170
<br>[<ffffffc00018ebf0>] SyS_read+0x40/0x8c
<br>[<ffffffc000084308>] cpu_switch_to+0x48/0x4c
<br>[<ffffffffffffffff>] 0xffffffffffffffff</span></div>
<div><br></div><div><br></div><div>Thanks!</div><hr style="width: 210px; height: 1px;" color="#b5c4df" size="1" align="left">
<div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>jinzhao@wingtech.cn</div></div></span></div>
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