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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/20/24 07:26, Takashi Iwai wrote: > On Wed, 20 Mar 2024 02:13:08 +0100, > Mirsad Todorovac wrote: >> >> Hi, >> >> On Ubuntu 22.04 LTS, with the torvalds tree kernel vanilla v6.8-11167-g4438a810f396, >> there is like 660K memory leaks sized 2048 bytes (1.35 GB) >> >> unreferenced object 0xffff919c43c7c800 (size 2048): >> unreferenced object 0xffff919c43c78000 (size 2048): >> unreferenced object 0xffff919c43c79800 (size 2048): >> root@defiant:/home/marvin/linux/kernel/linux_torvalds# grep size ~marvin/linux/kernel_bugs/v6.8-11167/kmemleak.log | wc -l >> 663265 >> root@defiant:/home/marvin/linux/kernel/linux_torvalds# >> >> Please find the .config attached. >> >> The kmemleak output is: >> >> unreferenced object 0xffff9199526ba800 (size 2048): >> comm "pulseaudio", pid 2533, jiffies 4294900352 >> hex dump (first 32 bytes): >> 04 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ >> 49 45 43 39 35 38 20 50 6c 61 79 62 61 63 6b 20 IEC958 Playback >> backtrace (crc 87c1dcdc): >> [] kmemleak_alloc+0x4b/0x90 >> [] __kmalloc_node_track_caller+0x3c7/0x530 >> [] memdup_user+0x2b/0xb0 >> [] snd_ctl_ioctl+0x726/0x860 [snd] >> [] __x64_sys_ioctl+0x9d/0xe0 >> [] do_syscall_64+0x83/0x150 >> [] entry_SYSCALL_64_after_hwframe+0x6c/0x74 > > Thanks for the report. This was indeed an overlooked marking of > __free(kfree). I'll submit the fix patch. > > Takashi Not at all, thanks for such an early response. I understand the problems with the incremental development. Actually, great it was caught before the release ;-) Best regards, Mirsad Todorovac