https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254725
--- Comment #10 from Richard Scheffenegger <[email protected]> --- received the core and kernel.debug symbols. The panic is likely a off-by-one related to the FIN bit, but not with the rescue retransmission, but rather PRR. The TCP state indicates, that only the last data byte, and the final FIN bit are unacknowledged. frame 11: (kgdb) p *tp->sackhint.nexthole $48 = {start = 935342315, end = 935342316, rxmit = 935342315, scblink = {tqe_next = 0x0, tqe_prev = 0xfffffe013eac0618}} (kgdb) p tp->snd_max $49 = 935342317 (kgdb) p tp->snd_una $50 = 935342315 (kgdb) p/x tp->t_flags $6 = 0x603003f4 ====> TF_SENTFIN is set. Now, the FIN bit occupys the last Seq# (..317). The SACK hole should therefore be a valid 1 byte hole, which hasn't been retransmitted... The incoming SACK appears to be SACKing the FIN bit? (kgdb) p/x *(struct sackblk *)to.to_sacks $53 = {start = 0xec30c037, end = 0xed30c037} (kgdb) p 0x37c030ec $54 = 935342316 (kgdb) p 0x37c030ed $55 = 935342317 -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
