> Thanks for the report. This code path only runs on cheetah+ cpus, > which is why your V240 is one machine where you see this. > > Please test the following patch, thanks again! > > ==================== > sparc64: Take ctx_alloc_lock properly in hugetlb_setup(). This seems to work fine - ran "git clone-" for hours and the warning did not reappear. However, I have seen this during the hours in dmesg, sooin after start: [ 698.710915] ------------[ cut here ]------------ [ 698.771673] WARNING: CPU: 1 PID: 1565 at kernel/smp.c:416 smp_call_function_many+0xc0/0x400 [ 698.881558] Modules linked in: loop sg tg3 i2c_ali15x3 hwmon i2c_ali1535 ptp pps_core skge i2c_core [ 699.000592] CPU: 1 PID: 1565 Comm: git Not tainted 4.6.0-08907-g7639dad-dirty #8 [ 699.097834] Call Trace: [ 699.129850] [00000000004602a4] __warn+0xa4/0xe0 [ 699.190471] [0000000000460378] warn_slowpath_null+0x18/0x40 [ 699.264816] [00000000004e7ae0] smp_call_function_many+0xc0/0x400 [ 699.344882] [00000000004e7e44] smp_call_function+0x24/0x40 [ 699.418081] [00000000004e7e7c] on_each_cpu+0x1c/0xa0 [ 699.484422] [0000000000451a80] hugetlb_setup+0x120/0x160 [ 699.555335] [0000000000450568] do_sparc64_fault+0x508/0x7a0 [ 699.629683] [0000000000407cb0] sparc64_realfault_common+0x10/0x20 [ 699.710890] ---[ end trace d3b6e60a330e267d ]--- [ 699.771506] ------------[ cut here ]------------ [ 699.832130] WARNING: CPU: 1 PID: 1565 at kernel/smp.c:291 smp_call_function_single+0xc4/0x1c0 [ 699.944230] Modules linked in: loop sg tg3 i2c_ali15x3 hwmon i2c_ali1535 ptp pps_core skge i2c_core [ 700.063160] CPU: 1 PID: 1565 Comm: git Tainted: G W 4.6.0-08907-g7639dad-dirty #8 [ 700.176419] Call Trace: [ 700.208530] [00000000004602a4] __warn+0xa4/0xe0 [ 700.269156] [0000000000460378] warn_slowpath_null+0x18/0x40 [ 700.343503] [00000000004e76c4] smp_call_function_single+0xc4/0x1c0 [ 700.425857] [00000000004e7b80] smp_call_function_many+0x160/0x400 [ 700.507063] [00000000004e7e44] smp_call_function+0x24/0x40 [ 700.580263] [00000000004e7e7c] on_each_cpu+0x1c/0xa0 [ 700.646602] [0000000000451a80] hugetlb_setup+0x120/0x160 [ 700.717518] [0000000000450568] do_sparc64_fault+0x508/0x7a0 [ 700.791865] [0000000000407cb0] sparc64_realfault_common+0x10/0x20 [ 700.873070] ---[ end trace d3b6e60a330e267e ]--- [ 1992.438454] kworker/dying (61) used greatest stack depth: 1760 bytes left -- Meelis Roos (mroos@xxxxxxxx) -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
