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Pskb_expand_head

Web--- Christoph Paasch reports [1] about incorrect skb->truesize after skb_expand_head() call in ip6_xmit. This may happen because of two reasons: - skb_set_owner_w() for newly cloned skb is called too early, before pskb_expand_head() where truesize is adjusted for (!skb-sk) case. - pskb_expand_head() does not adjust truesize in (skb->sk) case. WebNAME¶. pskb_expand_head - reallocate header of sk_buff. SYNOPSIS¶. int pskb_expand_head(struct sk_buff * skb, int nhead, int ntail, gfp_t gfp_mask); …

LKML: Vasily Averin: [PATCH net v6] skb_expand_head() …

WebAug 29, 2024 · This may happen because of two reasons: - skb_set_owner_w() for newly cloned skb is called too early, before pskb_expand_head() where truesize is adjusted for (!skb-sk) case. - pskb_expand_head() does not adjust truesize in (skb->sk) case. In this case sk->sk_wmem_alloc should be adjusted too. WebThis may happen because of two reasons: - skb_set_owner_w() for newly cloned skb is called too early, before pskb_expand_head() where truesize is adjusted for (!skb-sk) case. - pskb_expand_head() does not adjust truesize in (skb->sk) case. In this case sk->sk_wmem_alloc should be adjusted too. greed fall 日本語化 steam https://b-vibe.com

665110 – System panic in pskb_expand_head When arp_validate …

Webpskb_expand_head if (!skb->sk skb->destructor == sock_edemux) skb->truesize += size - osize; If we uses increased truesize adding as delta_truesize, it will be larger than before and even larger than previous total truesize value if skbs in frag_list are abundant. The main skb truesize will become WebApr 11, 2024 · page_pool: allow caching from safely localized NAPI expand [net-next,0/3] page_pool: allow caching from safely localized NAPI [net-next,1/3] net: skb: plumb napi state thru skb freeing paths Web!skb_clone_writable) before then using pskb_expand_head to copy the skb if that is required. There are already some skb_cow_* functions for other conditions, so added this one and changed the call sites. Signed-off-by: Dave Wiltshire --- flossbach von storch sicav multip

Subject Re: [PATCH NET v4 3/7] ipv6: use skb_expand_head in …

Category:[RFC net v7] net: skb_expand_head() adjust skb->truesize incorrectly

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Pskb_expand_head

[PATCH 3/3] skbuff: Added new helper function skb_cow_clone_head.

WebJan 24, 2024 · WARNING in pskb_expand_head Status: upstream: reported C repro on 2024/01/24 20:51 Reported-by: … WebMar 1, 2024 · use ksize(len) to calculate truesize while pskb_expand_head uses. skb_segment_list. err = skb_unclone(nskb, GFP_ATOMIC); pskb_expand_head. if (!skb->sk …

Pskb_expand_head

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Webint pskb_expand_head (struct sk_buff * skb, int nhead, int ntail, gfp_t gfp_mask); Arguments. skb. buffer to reallocate nhead. room to add at head ntail. room to add at tail gfp_mask. … WebSep 2, 2024 · From: Vasily Averin To: Eric Dumazet , Christoph Paasch , "David S. Miller" Cc: Hideaki YOSHIFUJI , David Ahern , Jakub Kicinski , netdev …

WebFeb 22, 2024 · Hello, I am using up to date Armbian Buster. TP-Link TL-WN722N V1 USB WiFi dongle causes system crashes after kernel upgrade to 5.4.12-meson64 #19.11.8 SMP PREEMPT Thu Jan 16 20:12:23 CET 2024 aarch64 GNU/Linux. Before updating the kernel, I had no such problem. Feb 12 20:17:15 xxx systemd[1]: Fo... WebAug 2, 2024 · + pskb_expand_head (skb, SKB_DATA_ALIGN (delta), 0, GFP_ATOMIC)) { + kfree_skb (skb); + skb = NULL; + } + return skb; +} +EXPORT_SYMBOL (skb_expand_head); …

WebTrims skb to length len. It can change skb pointers. / * 针对skb中存在非线性数据的情形，将skb的数据长度裁减到len长度，最终skb-> len = len * 多余的数据会被clean掉。 int ___pskb_trim (struct sk_buff * skb, ___pskb_trim (struct sk_buff * skb, WebThe change 'mac80211: Fix BUG in pskb_expand_head when transmitting shared skbs' added a check for copying the skb if it's shared, however the tx info variable still points at the cb of the old skb Signed-off-by: Felix Fietkau Acked-by: Helmut Schaa

WebThis may happen because of two reasons: - skb_set_owner_w() for newly cloned skb is called too early, before pskb_expand_head() where truesize is adjusted for (!skb-sk) case. - pskb_expand_head() does not adjust truesize in (skb->sk) case. In this case sk->sk_wmem_alloc should be adjusted too. Eric cautions us against increasing …

WebFrom: Eric Dumazet To: Eric Dumazet , Christoph Paasch , Vasily Averin greed fear cryptoflossbach von storch sicav multip kursWebDec 22, 2010 · Every buffer the bond interface received would be shared between the driver and the tcpdump process, thus, resulting in the aforementioned kernel panic. With this … floss bidco limited