On Thu, Dec 10, 2020 at 11:25:13PM +0530, Md Muazzam Husain wrote: > Hi All, > I have kernel version 3.10.59. So during the allocation for skb i That kernel is over 6 years old: https://lwn.net/Articles/618650/ It's been out of support since November 2017. The development kernel it was based on is over 7 years old. It's unreasonable to expect people to know the answer to this. Can you reproduce this problem with a recent kernel? > am getting call trace for __netdev_alloc_skb which follows > till cache_alloc_refill and finally crashes. Please find snapshot below. > addr2line -e vmlinux ffffffffc114109c shows linux/mm/slab.c:2700 has the > problem. Is there any existing bug and any patch for this. > > Call Trace: > [<ffffffffc114109c>] *cache_alloc_refill*+0x1b4/0x848 > [<ffffffffc1141854>] __kmalloc_track_caller+0x124/0x1f0 > [<ffffffffc144a930>] __kmalloc_reserve.isra.17+0x40/0xa8 > [<ffffffffc144b644>] __alloc_skb+0x84/0x1a0 > [<ffffffffc144d084>] *__netdev_alloc_skb*+0xdc/0x148 > [<ffffffffc13fb510>] xlpnae_irq+0x148/0x200 > [<ffffffffc10b87ac>] handle_irq_event_percpu+0x94/0x3f0 > [<ffffffffc10b8b5c>] handle_irq_event+0x54/0x98 > [<ffffffffc10bc724>] handle_level_irq+0xe4/0x170 > [<ffffffffc10b7d90>] generic_handle_irq+0x38/0x58 > [<ffffffffc1018a20>] do_IRQ+0x18/0x28 > [<ffffffffc1015ce8>] plat_irq_dispatch+0x258/0x490 > [<ffffffffc1016a00>] ret_from_irq+0x0/0x4 > [<ffffffffc1016ca0>] __r4k_wait+0x20/0x40 > [<ffffffffc109072c>] cpu_startup_entry+0xd4/0x2d8 > [<ffffffffc1014ab8>] prom_pre_boot_secondary_cpus+0x0/0x48 > > > Thanks, > Muazzam
