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Message-ID: <4EF1B557.3050901@monstr.eu> Date: Wed, 21 Dec 2011 11:30:47 +0100 From: Michal Simek <monstr@...str.eu> To: Eric Dumazet <eric.dumazet@...il.com> CC: David Miller <davem@...emloft.net>, John Williams <john.williams@...alogix.com>, netdev@...r.kernel.org Subject: Re: ICMP packets - ll_temac with Microblaze Eric Dumazet wrote: > Le mercredi 21 décembre 2011 à 11:11 +0100, Michal Simek a écrit : >> Hi Eric and David, >> >> I have found one problem with ll_temac driver and >> this commit: net: more accurate skb truesize >> sha1: 87fb4b7b533073eeeaed0b6bf7c2328995f6c075 >> >> The problem is only with icmp packets from the target. It is sent and driver receive it >> but it is not proceed to the application. >> >> The problem I see is that kmalloc_node_track_caller allocate >> specific size and then this size is changed by SKB_WITH_OVERHEAD(ksize(data)). >> The problem is with netdev_alloc_skb_ip_align which calls __alloc_skb function. >> >> Currently driver uses setting for jumbo frames (9k). When I change it to use mtu (1,5k) then >> everything is ok. >> >> Can you give me some hints what can be wrong? >> > > Is it with SLUB, SLAB or SLOB allocator ? SLAB. CONFIG_SLAB=y # CONFIG_SLUB is not set # CONFIG_SLOB is not set Michal -- Michal Simek, Ing. (M.Eng) w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/ Microblaze U-BOOT custodian -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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