On Fri, Jun 21, 2019 at 05:58:48PM -0400, Chuck Lever wrote: > For unrelated reasons I've enabled kmemleak in my client's kernel. > While running xfstests, I get these reports on several of the tests. > I've seen them on a few recent kernels as well. > > They do not look related to NFS. Anyone know where I should report > this? Most likely fixed by: https://patchwork.kernel.org/patch/11006849/ See this report: https://lore.kernel.org/linux-nfs/20190614185237.GA550@splinter/#t > > > [cel@manet ~]$ cat src/xfstests/results/generic/013.kmemleak > EXPERIMENTAL kmemleak reported some memory leaks! Due to the way kmemleak > works, the leak might be from an earlier test, or something totally unrelated. > unreferenced object 0xffff88886963c4c0 (size 168): > comm "mount", pid 3471, jiffies 4296003082 (age 161.789s) > hex dump (first 32 bytes): > 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<00000000fd30522a>] kmem_cache_alloc+0xc4/0x1cb > [<0000000008f8eac6>] prepare_creds+0x21/0xc7 > [<000000006e9e3064>] prepare_exec_creds+0xb/0x3a > [<000000001b408d7e>] __do_execve_file.isra.31+0x103/0x818 > [<000000004096f0a3>] do_execve+0x25/0x29 > [<0000000008a9aa1c>] __x64_sys_execve+0x26/0x2b > [<00000000599d3d33>] do_syscall_64+0x5a/0x68 > [<00000000005d29f3>] entry_SYSCALL_64_after_hwframe+0x49/0xbe > unreferenced object 0xffff888867a4f708 (size 32): > comm "mount", pid 3471, jiffies 4296003082 (age 161.789s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000004c53b46c>] __kmalloc+0xfc/0x14a > [<000000002ff13bd8>] lsm_cred_alloc.isra.5+0x24/0x32 > [<000000009eb979ec>] security_prepare_creds+0x21/0x61 > [<0000000086789f15>] prepare_creds+0xb3/0xc7 > [<000000006e9e3064>] prepare_exec_creds+0xb/0x3a > [<000000001b408d7e>] __do_execve_file.isra.31+0x103/0x818 > [<000000004096f0a3>] do_execve+0x25/0x29 > [<0000000008a9aa1c>] __x64_sys_execve+0x26/0x2b > [<00000000599d3d33>] do_syscall_64+0x5a/0x68 > [<00000000005d29f3>] entry_SYSCALL_64_after_hwframe+0x49/0xbe > [cel@manet ~]$ > > -- > Chuck Lever > > >
