在 2020/12/1 上午3:52, Naresh Kamboju 写道: > Crash log: > ----------- > ioctl_sg01.c:81: TINFO: Found SCSI device /dev/sg1 > [ 285.862123] ================================================================== > [ 285.863025] BUG: KASAN: null-ptr-deref in workingset_eviction+0xf2/0x1e0 > [ 285.863025] Read of size 4 at addr 00000000000000c8 by task kswapd0/245 Hi Naresh, Good to know you again. :) Would you like to use command to check whichh line cause the panic: scripts/faddr2line vmlinux workingset_eviction+0xf2/0x1e0 I can't reproduce it. and my gcc version mismatch with yours. Thanks Alex